#help-28 | Mathematics | Page 305

tough lion Nov 11, 2021, 1:59 AM

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yea

azure shoal Nov 11, 2021, 1:59 AM

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and are their working times independent of each other

tough lion Nov 11, 2021, 2:00 AM

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yes

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they are different people

azure shoal Nov 11, 2021, 2:00 AM

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1 would be 17

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but the others are negative

tough lion Nov 11, 2021, 2:00 AM

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azure shoal 1 would be 17

yeah, I am torn between 17 and 21

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but I now think it is 21 because you can't have negative times

spare rivet Nov 11, 2021, 2:00 AM

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P1 + P2 + P3 = x/5
P1 + P3 = x/7
P1 + P2 = x/15

tough lion Nov 11, 2021, 2:00 AM

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spare rivet P1 + P2 + P3 = x/5 P1 + P3 = x/7 P1 + P2 = x/15

ye this is what I thought

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wait, x?

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I thought of that but x = 1

spare rivet Nov 11, 2021, 2:01 AM

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X doesnt matter

azure shoal Nov 11, 2021, 2:01 AM

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anyway where are you getting 21

tough lion Nov 11, 2021, 2:02 AM

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here

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that's how I get 21

tough lion Nov 11, 2021, 2:02 AM

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spare rivet P1 + P2 + P3 = x/5 P1 + P3 = x/7 P1 + P2 = x/15

using this, I get P1 = 1/105

azure shoal Nov 11, 2021, 2:03 AM

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3 = -10 minutes if you take eq 1 from eq 3

tough lion Nov 11, 2021, 2:03 AM

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you sure?

azure shoal Nov 11, 2021, 2:03 AM

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then 1 + 3 = 7

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1 = 17

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kinda weird notation but yeah

tough lion Nov 11, 2021, 2:04 AM

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hm

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well, 3 of us got 3 different answers lol

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are you sure you can just add the times up?

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lets say A does a task in 5 min
B does a task in 5 min
does that mean, when A and B does the task, it is done in 0 min?

That can't be right, and I think that's what ur doing

azure shoal Nov 11, 2021, 2:06 AM

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well if the equations are correct, yes

tough lion Nov 11, 2021, 2:06 AM

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hm

azure shoal Nov 11, 2021, 2:08 AM

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full set of solutions: person1 = 17, person2 = -2, person3 = -10

tough lion Nov 11, 2021, 2:08 AM

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yeah, I feel really unconvinced by the negative times

azure shoal Nov 11, 2021, 2:08 AM

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prob just a badly made question

tough lion Nov 11, 2021, 2:08 AM

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you can't finish a task that you started 2 minutes in the past

tough lion Nov 11, 2021, 2:08 AM

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azure shoal prob just a badly made question

I very much doubt it

tough lion Nov 11, 2021, 2:09 AM

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spare rivet P1 + P2 + P3 = x/5 P1 + P3 = x/7 P1 + P2 = x/15

can you explain this approach?

azure shoal Nov 11, 2021, 2:09 AM

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ok put your solutions into the equations and see if they give the correct ans

tough lion Nov 11, 2021, 2:09 AM

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ykw, I'm just gonna tag a helper as it's been 15 minutes xD

spare rivet Nov 11, 2021, 2:09 AM

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We can x as the whole task

tough lion Nov 11, 2021, 2:09 AM

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azure shoal ok put your solutions into the equations and see if they give the correct ans

It gives P1 = 1/105

spare rivet Nov 11, 2021, 2:09 AM

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So each minute the three of them do a x/5 amount of task

tough lion Nov 11, 2021, 2:10 AM

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okay

azure shoal Nov 11, 2021, 2:10 AM

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it could be that person 2 and 3 speed up the task hence the negatives

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and that person 1 is base rate

azure shoal Nov 11, 2021, 2:11 AM

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azure shoal full set of solutions: person1 = 17, person2 = -2, person3 = -10

if you add all these together you get 5, the ans to equation 1

spare rivet Nov 11, 2021, 2:11 AM

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Yeah I actually got 105 minutes lol

tough lion Nov 11, 2021, 2:12 AM

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I'm getting 21, 1.4 and 15

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and with ur method, I get 1/105, 2/35, 2,15

azure shoal Nov 11, 2021, 2:12 AM

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21 + 1.4 + 15 doesnt equal 5

spare rivet Nov 11, 2021, 2:12 AM

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Maybe P1 is not very productive and got help from P2 and P3

tough lion Nov 11, 2021, 2:12 AM

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azure shoal 21 + 1.4 + 15 doesnt equal 5

I'm now 99% sure you can't just add them like that

spare rivet Nov 11, 2021, 2:13 AM

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I solved something similar last night in this server

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They just use days instead of minutes

tough lion Nov 11, 2021, 2:13 AM

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tough lion and with ur method, I get 1/105, 2/35, 2,15

how are you getting 105 not 1/105?

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I used your method

spare rivet Nov 11, 2021, 2:14 AM

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It’s actually x/105

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P1 completes x/105 amount of work in 1 minutes

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So it should take them 105 minutes to complete x

tough lion Nov 11, 2021, 2:14 AM

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ah

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I see

spare rivet Nov 11, 2021, 2:14 AM

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It worked last night so it should work now KEK

azure shoal Nov 11, 2021, 2:15 AM

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where are you getting 105

spare rivet Nov 11, 2021, 2:15 AM

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Does your question come with an answer

tough lion Nov 11, 2021, 2:15 AM

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no

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:(

azure shoal Nov 11, 2021, 2:16 AM

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😐

tough lion Nov 11, 2021, 2:16 AM

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spare rivet P1 + P2 + P3 = x/5 P1 + P3 = x/7 P1 + P2 = x/15

@azure shoal

azure shoal Nov 11, 2021, 2:16 AM

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why x/15

tough lion Nov 11, 2021, 2:16 AM

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Should we ping a helper because you two are getting different answers?

spare rivet Nov 11, 2021, 2:16 AM

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spare rivet We can x as the whole task

Here

azure shoal Nov 11, 2021, 2:16 AM

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sure go for it

tough lion Nov 11, 2021, 2:16 AM

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<@&286206848099549185>

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Question in pinned

azure shoal Nov 11, 2021, 2:17 AM

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ping me when you get the ans

tough lion Nov 11, 2021, 2:17 AM

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aight

full forumBOT Nov 11, 2021, 2:32 AM

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@tough lion Has your question been resolved?

tough lion Nov 11, 2021, 2:39 AM

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<@&286206848099549185>

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Hey! I need help with this question. We think the answer is 105 but someone else says it is 17.

Person 1, 2, 3 complete a task in 5 minutes
Person 1, 3 complete a task in 7 minutes
Person 1, 2 complete a task in 15 minutes

How long does it take Person 1 to complete a task?

granite basin Nov 11, 2021, 3:05 AM

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its 17 no?

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if you reduce it

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azure shoal Nov 11, 2021, 3:08 AM

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yeah thats the right ans but they dont really believe it, idk

spare rivet Nov 11, 2021, 3:10 AM

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but it shouldn't have negative answers

tough lion Nov 11, 2021, 3:16 AM

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yea

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I give up lol, I'll update you on what it is tomorrow

granite basin Nov 11, 2021, 3:17 AM

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it really depends on how having more people affects the time to complete the task

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like does have that person there just reduce a certain amount of time from the total time?

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or do they all contribute together

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it could be 105 as well

tough lion Nov 11, 2021, 3:18 AM

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If A does a task in 5 minutes
and if B does a task in 5 minutes
A+B does the task in 0 minutes or 2.5min?

tough lion Nov 11, 2021, 3:18 AM

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granite basin or do they all contribute together

I guess it's this

spare rivet Nov 11, 2021, 3:19 AM

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they will do it faster

granite basin Nov 11, 2021, 3:19 AM

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in that case its 105

tough lion Nov 11, 2021, 3:19 AM

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yeah, thought so

spare rivet Nov 11, 2021, 3:19 AM

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but never 0

tough lion Nov 11, 2021, 3:19 AM

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anyways, tysm for all the help

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I finally understand this frustrating question lmao

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.close

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tough lion Nov 11, 2021, 3:20 AM

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@azure shoal answer above ^ it was 105

full forumBOT Nov 11, 2021, 3:20 AM

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dull wasp Nov 11, 2021, 3:30 AM

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I;m back because im extremely confused

full forumBOT Nov 11, 2021, 3:30 AM

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dull wasp I;m back because im extremely confused

dull wasp Nov 11, 2021, 3:30 AM

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If i'm given this

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then wouldn't it be 4-80-320

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so -396

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I dont understand what im doin

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wrong*

granite basin Nov 11, 2021, 3:43 AM

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so the equation can be written as

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full forumBOT Nov 11, 2021, 3:50 AM

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@dull wasp Has your question been resolved?

dull wasp Nov 11, 2021, 3:55 AM

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I seee thank you

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old vessel Nov 11, 2021, 4:21 AM

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full forumBOT Nov 11, 2021, 4:21 AM

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old vessel

old vessel Nov 11, 2021, 4:21 AM

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i took the limit and got 2/3

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so it should converge right?

full forumBOT Nov 11, 2021, 4:36 AM

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misty silo Nov 11, 2021, 4:52 AM

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media2F26f2F26fdcbdf-f25e-4d6a-8123-dfa6c0c888c02Fimage.png

full forumBOT Nov 11, 2021, 4:52 AM

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misty silo

misty silo Nov 11, 2021, 4:53 AM

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I am stuck because from what I understand

"What is the formula for calculating load?
Multiply the mass of the object by the gravitational acceleration of the earth (9.8 m/sec2), and the height in meters."

full forumBOT Nov 11, 2021, 5:08 AM

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@misty silo Has your question been resolved?

misty silo Nov 11, 2021, 5:08 AM

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<@&286206848099549185>

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I am not sure how to solve it, this is for my Intro to Civil Engineering class, but we were not given any examples of how to solve for it

full forumBOT Nov 11, 2021, 5:39 AM

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@misty silo Has your question been resolved?

onyx glen Nov 11, 2021, 6:22 AM

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it would seem you need to know how much maple wood deforms under load.

full forumBOT Nov 11, 2021, 6:42 AM

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@misty silo Has your question been resolved?

misty silo Nov 11, 2021, 6:42 AM

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.close

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misty silo Nov 11, 2021, 6:43 AM

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womp womp

full forumBOT Nov 14, 2021, 5:47 PM

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charred orbit Nov 14, 2021, 6:54 PM

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hi

full forumBOT Nov 14, 2021, 6:54 PM

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charred orbit hi

charred orbit Nov 14, 2021, 6:59 PM

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I want a help...here we have two curves (A) and (B) , I want to know if curve (A) is an derivative to (B) or the curve (B) in an derivative to (A).
and why?

torn jolt Nov 14, 2021, 7:02 PM

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You need to show the specifics of those functions or else we can't help

charred orbit Nov 14, 2021, 7:02 PM

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Please mention me when anyone back!!!

torn jolt Nov 14, 2021, 7:03 PM

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torn jolt You need to show the specifics of those functions or else we can't help

@charred orbit

charred orbit Nov 14, 2021, 7:03 PM

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hi

torn jolt Nov 14, 2021, 7:04 PM

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?

charred orbit Nov 14, 2021, 7:04 PM

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wait

torn jolt Nov 14, 2021, 7:04 PM

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Is the task to describe it in general?

charred orbit Nov 14, 2021, 7:05 PM

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do you want all the question ?

torn jolt Nov 14, 2021, 7:06 PM

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I don't think I can help you otherwise

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lol

charred orbit Nov 14, 2021, 7:06 PM

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wait

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Can you help? @torn jolt

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please

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please I have an exam tomorrow

torn jolt Nov 14, 2021, 7:19 PM

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The derivative is the slope of a point

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Which of the curves represents the slope of the other?

charred orbit Nov 14, 2021, 7:20 PM

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A

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?

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@torn jolt

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since slope of B is 0

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?

torn jolt Nov 14, 2021, 7:22 PM

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You mean that A is the derivative of B?

charred orbit Nov 14, 2021, 7:22 PM

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yes

torn jolt Nov 14, 2021, 7:24 PM

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That's correct

charred orbit Nov 14, 2021, 7:24 PM

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ok

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but if he want from me an justification what should I write?@torn jolt

torn jolt Nov 14, 2021, 7:28 PM

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You know what a derivative is?

charred orbit Nov 14, 2021, 7:28 PM

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A

torn jolt Nov 14, 2021, 7:28 PM

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No, in general

charred orbit Nov 14, 2021, 7:29 PM

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no

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@torn jolt

torn jolt Nov 14, 2021, 7:42 PM

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But you learned about it in class, right?

charred orbit Nov 14, 2021, 7:42 PM

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no

torn jolt Nov 14, 2021, 7:42 PM

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How else are you supposed to solve the question

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lol

charred orbit Nov 14, 2021, 7:43 PM

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since I was sick

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and tomorrow have an exam

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@torn jolt

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please

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this is the last question

torn jolt Nov 14, 2021, 7:45 PM

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I won't be able to teach you all about derivatives like this

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Go watch a course or something

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Derivatives is a huge topic

charred orbit Nov 14, 2021, 7:46 PM

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noo

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just I want a justification that I should write it

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if you can't help me no problem

torn jolt Nov 14, 2021, 7:47 PM

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It says that one function is the derivative of th other and as B is negative on the interval from -5 to 0 but the graph of A is clearly rising we can say that B is not the derivative of A

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So it has to be the other way around

charred orbit Nov 14, 2021, 7:48 PM

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yes

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I mean that

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thanks

full forumBOT Nov 14, 2021, 8:03 PM

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@charred orbit Has your question been resolved?

charred orbit Nov 14, 2021, 8:06 PM

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full forum <@788065920211746847> Has your question been resolved?

Yes sure!

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charred orbit Nov 14, 2021, 8:12 PM

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.close

eternal prism Nov 14, 2021, 8:18 PM

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Hello, Solve the following problem: Several people gathered to celebrate Christmas. Each person brought three gifts to each of the other people. Knowing that in total 468 gifts were deposited near the Christmas tree, how many people were there?
is the answer 156 ? or does i'm getting baited and i need to use power ?

full forumBOT Nov 14, 2021, 8:18 PM

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eternal prism Hello, ``` Solve the following problem: Several people gathered to celebrate Chr...

eternal prism Nov 14, 2021, 8:19 PM

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n = 156
``` it feels too easy so i guess i'm getting baited
but when i try to schematise it feels like i don't need power

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pastel oar Nov 14, 2021, 8:21 PM

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if there are 4 people, it means each person brought 9 gifts, (3 for each other person)

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so total 36 gifts

eternal prism Nov 14, 2021, 8:22 PM

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"to each of the other people"
i missread

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thanks you

pastel oar Nov 14, 2021, 8:23 PM

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🙂

eternal prism Nov 14, 2021, 8:23 PM

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( i'm not fluent english, my answer is not sarcastic ahah )

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.close

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solemn mica Nov 14, 2021, 9:37 PM

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been stuck on this for a while, i know its just adding componenets but cant figure it out please help

Screen_Shot_2021-11-14_at_9.48.34_PM.png

full forumBOT Nov 14, 2021, 9:37 PM

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solemn mica been stuck on this for a while, i know its just adding componenets but cant figu...

solemn mica Nov 14, 2021, 9:50 PM

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<@&286206848099549185>

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ocean jasper Nov 15, 2021, 12:16 AM

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Hello can anyone explain to me how to get the "P" and "X,Y"?This is an asynchronous class and this hw assignment got me up for awhile with not too many resources around me, would appreciate it if I could get some help

full forumBOT Nov 15, 2021, 12:16 AM

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ocean jasper Hello can anyone explain to me how to get the "P" and "X,Y"?This is an asynchro...

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ocean jasper Nov 15, 2021, 12:49 AM

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<@&286206848099549185>

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buoyant radish Nov 15, 2021, 7:00 AM

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need help on this question

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TA sent this message to help us

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<@&286206848099549185>

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shadow void Nov 17, 2021, 5:51 PM

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zinc topaz Nov 17, 2021, 5:53 PM

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Which one?

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The solve for X or triangle DEF?

zinc topaz Nov 17, 2021, 5:54 PM

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shadow void

Which one?

torn jolt Nov 17, 2021, 5:54 PM

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shadow void

,flip

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sully

zinc topaz Nov 17, 2021, 5:54 PM

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I rotated it for them

torn jolt Nov 17, 2021, 5:54 PM

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the bot can do it but it failed us this time angerysad

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Since there's three of you asking the same question; what is the sum of interior angles of a triangle?

zinc topaz Nov 17, 2021, 5:55 PM

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(Astro is the one asking the question, I rotated the image for them)

shadow void Nov 17, 2021, 5:55 PM

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bro i flipped it my internet is so damn skow

torn jolt Nov 17, 2021, 5:55 PM

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torn jolt Since there's three of you asking the same question; what is the sum of interior...

I am not asking a question

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!

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anyways the sum is 180 ofc

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Not you, there's three separate people posting the same picture

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oh sorry

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also what

shadow void Nov 17, 2021, 5:58 PM

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torn jolt Not you, there's three separate people posting the same picture

180

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obv

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im reposting for someone

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becuase he only has 20 min left

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so im trying to help him

full forumBOT Nov 17, 2021, 11:53 PM

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floral crater Nov 18, 2021, 12:06 AM

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full forumBOT Nov 18, 2021, 12:06 AM

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floral crater

full forumBOT Nov 18, 2021, 12:21 AM

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@floral crater Has your question been resolved?

full forumBOT Nov 18, 2021, 12:51 AM

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@floral crater Has your question been resolved?

full forumBOT Nov 18, 2021, 1:51 AM

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@floral crater Has your question been resolved?

full forumBOT Nov 18, 2021, 3:51 AM

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@floral crater Has your question been resolved?

full forumBOT Nov 18, 2021, 8:01 AM

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@floral crater Has your question been resolved?

fluid dragon Nov 18, 2021, 8:48 AM

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convert to Cartesian then back to cylindrical

floral crater Nov 18, 2021, 12:48 PM

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fluid dragon convert to Cartesian then back to cylindrical

i tried doing this but i arrived at a different answer, if possible can i see your solution?

fluid dragon Nov 18, 2021, 12:49 PM

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I haven't done it myself

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show your work

floral crater Nov 18, 2021, 1:09 PM

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fluid dragon I haven't done it myself

fluid dragon Nov 18, 2021, 1:22 PM

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hmm not sure why the answer is -6.035 a_r tho

floral crater Nov 18, 2021, 1:43 PM

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fluid dragon hmm not sure why the answer is -6.035 a_r tho

was my solution correct?

fluid dragon Nov 18, 2021, 1:44 PM

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didn't check the rest, I'll get back to you soon. A little busy sry

floral crater Nov 18, 2021, 1:49 PM

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no worries 🙂

fluid dragon Nov 18, 2021, 4:55 PM

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ok so I don't think what you did is wrong because I'm also getting the same r value

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idk tho

full forumBOT Nov 18, 2021, 9:49 PM

#

@floral crater Has your question been resolved?

floral crater Nov 18, 2021, 11:50 PM

#

fluid dragon ok so I don't think what you did is wrong because I'm also getting the same r va...

i see

#

thank you

manic pasture Nov 19, 2021, 10:23 AM

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i need help pls?

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can you pls help me :')

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@floral crater ?

floral crater Nov 19, 2021, 10:24 AM

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if i know the topic sure

manic pasture Nov 19, 2021, 10:25 AM

#

#

#

do you know this? :')

floral crater Nov 19, 2021, 10:26 AM

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i think it would be better if you create your own channel

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check #❓how-to-get-help

manic pasture Nov 19, 2021, 10:26 AM

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huh how?

floral crater Nov 19, 2021, 10:27 AM

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choose from help-0, help-5 then send your question there

manic pasture Nov 19, 2021, 10:27 AM

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Oh tysm! ^^

floral crater Nov 19, 2021, 1:06 PM

#

.close

full forumBOT Nov 19, 2021, 1:06 PM

#

Channel closed

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full forumBOT Nov 22, 2021, 4:36 PM

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carmine stream Nov 22, 2021, 4:43 PM

#

full forumBOT Nov 22, 2021, 4:44 PM

#

carmine stream

carmine stream Nov 22, 2021, 4:44 PM

#

I need to find dy/dx

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I found :

hushed pawn Nov 22, 2021, 4:44 PM

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carmine stream I need to find dy/dx

is f(u) dependent on x?

carmine stream Nov 22, 2021, 4:44 PM

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yes

hushed pawn Nov 22, 2021, 4:44 PM

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if not, treat as constant

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else, simplify

carmine stream Nov 22, 2021, 4:44 PM

#

hushed pawn Nov 22, 2021, 4:44 PM

#

carmine stream

substitute, differentiate using chain rule

carmine stream Nov 22, 2021, 4:45 PM

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$2(f(u) + 3x)(f'(u).u'+3)$

glossy valveBOT Nov 22, 2021, 4:45 PM

#

Mohad

carmine stream Nov 22, 2021, 4:46 PM

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is that right?

#

I can then find u'

hushed pawn Nov 22, 2021, 4:46 PM

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should be

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yes it is

carmine stream Nov 22, 2021, 4:49 PM

#

.close

full forumBOT Nov 22, 2021, 4:49 PM

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carmine stream Nov 22, 2021, 5:20 PM

#

full forumBOT Nov 22, 2021, 5:20 PM

#

carmine stream

carmine stream Nov 22, 2021, 5:20 PM

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how can I find the inverse of this function

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y = x+sqrt(x)

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I tried to square both sides, couldn't go further

rustic hamlet Nov 22, 2021, 5:22 PM

#

carmine stream I tried to square both sides, couldn't go further

One method to finding inverses is swapping x and y's (so it would be x = y + √y and then solve for y.

carmine stream Nov 22, 2021, 5:23 PM

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I know but how can I do that?

rustic hamlet Nov 22, 2021, 5:25 PM

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How can you do what? Solve for y?

carmine stream Nov 22, 2021, 5:25 PM

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yes

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x = y + sqrt(y)

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how to solve for y

#

squaring both sides and trying to factor stuff out didn't work for me

full forumBOT Nov 22, 2021, 5:41 PM

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@carmine stream Has your question been resolved?

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Channel closed

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carmine stream Nov 22, 2021, 5:55 PM

#

full forumBOT Nov 22, 2021, 5:55 PM

#

carmine stream

carmine stream Nov 22, 2021, 5:55 PM

#

I need to find dy/dx

mental plank Nov 22, 2021, 5:56 PM

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ok

mental plank Nov 22, 2021, 5:56 PM

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carmine stream I need to find dy/dx

do uk normal differentiation ??

carmine stream Nov 22, 2021, 5:57 PM

#

$$2(xy)(y+y'.x) +3 = 2y.y'$$

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is that right?

glossy valveBOT Nov 22, 2021, 5:58 PM

#

Mohad

mental plank Nov 22, 2021, 5:58 PM

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ya

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find y' u get dy/dx

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@carmine stream thts all

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y' = dy/dx

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so try bringing the y' on side

carmine stream Nov 22, 2021, 6:03 PM

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thanks @mental plank

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.close

full forumBOT Nov 22, 2021, 6:03 PM

#

Channel closed

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mental plank Nov 22, 2021, 6:03 PM

#

np

full forumBOT Nov 22, 2021, 6:05 PM

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vague rover Nov 22, 2021, 7:08 PM

#

Help me

full forumBOT Nov 22, 2021, 7:08 PM

#

vague rover Help me

vague rover Nov 22, 2021, 7:08 PM

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is the slope of this 2?

#

charred crag Nov 22, 2021, 7:10 PM

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Slope is change in y divided by change in x

vague rover Nov 22, 2021, 7:10 PM

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so it is 2

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right?

charred crag Nov 22, 2021, 7:10 PM

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Change in y is -5 and change in x is 2.5 so the gradient is -2

vague rover Nov 22, 2021, 7:11 PM

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Find the slope of the line that contains (−1, −9) and (−5, 9).

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so this is 4.5

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right?

charred crag Nov 22, 2021, 7:12 PM

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Um I don't think so

vague rover Nov 22, 2021, 7:12 PM

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-4.5?

charred crag Nov 22, 2021, 7:12 PM

#

It's $\frac{-9-9}{-1+5}$

glossy valveBOT Nov 22, 2021, 7:12 PM

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Munazza

charred crag Nov 22, 2021, 7:13 PM

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Does it make sense

vague rover Nov 22, 2021, 7:14 PM

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glossy valve **Munazza**

this is wrong

charred crag Nov 22, 2021, 7:14 PM

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Why

vague rover Nov 22, 2021, 7:15 PM

#

charred crag Nov 22, 2021, 7:15 PM

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My one is the same thing but multiplied the numerator and denominator by -1

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Which cancels out

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Basically I swapped the coordinates but the gradient(or slope) is still the same

vague rover Nov 22, 2021, 7:17 PM

#

charred crag Nov 22, 2021, 7:19 PM

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I don't get the question

vague rover Nov 22, 2021, 7:21 PM

#

k

light sonnet Nov 22, 2021, 7:28 PM

#

vague rover

$$\frac{-9}{2} = -4.5$$

glossy valveBOT Nov 22, 2021, 7:28 PM

#

dldh06

full forumBOT Nov 22, 2021, 7:36 PM

#

@vague rover Has your question been resolved?

full forumBOT Nov 22, 2021, 7:51 PM

#

Channel closed

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full forumBOT Nov 22, 2021, 8:24 PM

#

rustic hamlet Nov 22, 2021, 8:26 PM

#

Do not waste the helpers time with nonsense.

#

It's clearly apple.

knotty moth Nov 22, 2021, 8:27 PM

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Should we ping mods? 😒

full forumBOT Nov 22, 2021, 8:28 PM

#

Channel closed

Closed due to the original message being deleted

rustic hamlet Nov 22, 2021, 8:28 PM

#

There we go.

knotty moth Nov 22, 2021, 8:28 PM

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Well I do have his ID 😆

floral spear Nov 22, 2021, 8:30 PM

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what

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where did it go

#

o

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okey then

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another ping

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where did it go

knotty moth Nov 22, 2021, 8:31 PM

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Well

floral spear Nov 22, 2021, 8:31 PM

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jdu is doing it

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what do you need

knotty moth Nov 22, 2021, 8:32 PM

#

If you're wondering jdu wanted to know the answer for 1+1 and used @helpers

reef sparrow Nov 22, 2021, 8:33 PM

#

yeah, we can see deletions

#

@torn jolt do not ghost ping and do not waste helper/moderator time with troll questions.

full forumBOT Nov 23, 2021, 1:22 AM

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verbal jay Nov 23, 2021, 3:01 AM

#

full forumBOT Nov 23, 2021, 3:01 AM

#

verbal jay

verbal jay Nov 23, 2021, 3:03 AM

#

do i integrate f(x)

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i just dont know how tho

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*calculator-friendly

hot knoll Nov 23, 2021, 3:11 AM

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Did they teach you integration by parts?

#

If it's calculator permited you can always type "integral calculator" on google and dump it in there.

It looks like integration by parts to get the anti derivative

verbal jay Nov 23, 2021, 3:17 AM

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we actually just learned that today

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ill see what i can do

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hmm

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so far wolfram was the only one that didnt give me an error

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ill keep working on doing it by hand and see what happens

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(integrate by parts with dx)

full forumBOT Nov 23, 2021, 3:40 AM

#

@verbal jay Has your question been resolved?

full forumBOT Nov 23, 2021, 3:55 AM

#

Channel closed

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compact quail Nov 23, 2021, 6:18 AM

#

Ik this angle is 200 degrees but what do I write as exact value?

full forumBOT Nov 23, 2021, 6:18 AM

#

compact quail Ik this angle is 200 degrees but what do I write as exact value?

cobalt otter Nov 23, 2021, 6:21 AM

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OK, firstly, is this a unit circle?

compact quail Nov 23, 2021, 6:29 AM

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yes

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@cobalt otter

cobalt otter Nov 23, 2021, 6:31 AM

#

Okay, so do you remember where can you find the sine and cosine of angle t in a unit circle?

compact quail Nov 23, 2021, 6:31 AM

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opp/hyp and adj/hyp

cobalt otter Nov 23, 2021, 6:32 AM

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Well, that's for general right angled triangles.

compact quail Nov 23, 2021, 6:32 AM

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well it makes the angle with 180

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or pi/2

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200 is 10pi/9

cobalt otter Nov 23, 2021, 6:33 AM

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You may wanna check this out, there's another method for finding sine cosine and tangent using unit circle.
https://www.mathsisfun.com/geometry/unit-circle.html

compact quail Nov 23, 2021, 6:34 AM

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oh wait I'm just stoopid

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I knew that cosine and sine represented x and y

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ty for the help <3

cobalt otter Nov 23, 2021, 6:34 AM

#

👍

compact quail Nov 23, 2021, 6:34 AM

#

.close

full forumBOT Nov 23, 2021, 6:34 AM

#

Channel closed

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torn jolt Nov 23, 2021, 7:16 AM

#

Richard makes $9,000 a month plus some more money
from commission. He gets 10% of everything he sells. If
Richard sold $30,000 worth of items this worth, how
much is his salary for the month?

full forumBOT Nov 23, 2021, 7:16 AM

#

torn jolt Richard makes $9,000 a month plus some more money from commission. He gets 10%...

ebon glacier Nov 23, 2021, 7:20 AM

#

9000+30000*10%

torn jolt Nov 23, 2021, 7:20 AM

#

thankss

#

.close

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Channel closed

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tight moth Nov 23, 2021, 7:47 AM

#

Help

full forumBOT Nov 23, 2021, 7:47 AM

#

tight moth Help

tight moth Nov 23, 2021, 7:47 AM

#

hushed pawn Nov 23, 2021, 7:49 AM

#

tight moth

prove the congruence of triangles UYZ and UXW

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use the fact the U is the centre of the circle

tight moth Nov 23, 2021, 7:50 AM

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Yes so uhh can i answer triange zyu is congruent to triangle xwu?

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And the reason is SAS

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Is it correct?

hushed pawn Nov 23, 2021, 7:52 AM

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tight moth Yes so uhh can i answer triange zyu is congruent to triangle xwu?

ye

tight moth Nov 23, 2021, 7:52 AM

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And then the reason is SAS?

hushed pawn Nov 23, 2021, 7:53 AM

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yes

tight moth Nov 23, 2021, 7:53 AM

#

And how about UY = UZ then the reason is transitivity?

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How can i prove though?

hushed pawn Nov 23, 2021, 7:54 AM

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dude, U is the centre of the circle

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and Y and Z are points on its circumference

tight moth Nov 23, 2021, 7:54 AM

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The format is like statement and reason

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I need 7 statements

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Or something

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Enlo

#

Anyone

#

Anyone

#

#

<@&286206848099549185>

#

Its more than 15min anyone please??

#

Ah no i have 3 statements

YW and XZ are diameters
UY,UZ,UX,UW are radii
Angle YZU = Angle WXU - angle in same segmet are equal

#

And i need a minimum of 7 statements to prove

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Anyone

hearty lynx Nov 23, 2021, 8:28 AM

#

Have you learn inscribed angles yet?

tight moth Nov 23, 2021, 8:28 AM

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No

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Tearcher gave us homework even tho he didnt discuss yet

#

Deadline is in 1hr and i cant-

hearty lynx Nov 23, 2021, 8:29 AM

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Do you know what inscribed angles is??

tight moth Nov 23, 2021, 8:29 AM

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Uhh the angle formed inside

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The circle

hearty lynx Nov 23, 2021, 8:30 AM

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Yeah

tight moth Nov 23, 2021, 8:30 AM

#

Okay

hearty lynx Nov 23, 2021, 8:30 AM

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It form from?

tight moth Nov 23, 2021, 8:30 AM

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Interior

hearty lynx Nov 23, 2021, 8:31 AM

#

YUZ is an inscribed angle

tight moth Nov 23, 2021, 8:31 AM

#

tight moth

Well uhh i need statements for proving please soynoo

tight moth Nov 23, 2021, 8:31 AM

#

hearty lynx YUZ is an inscribed angle

Ohh

hearty lynx Nov 23, 2021, 8:31 AM

#

ZUW is an inscribed angle too

tight moth Nov 23, 2021, 8:31 AM

#

Copy that

hearty lynx Nov 23, 2021, 8:32 AM

#

And since they are equal, YZ=XW

tight moth Nov 23, 2021, 8:32 AM

#

Okay okay

hearty lynx Nov 23, 2021, 8:33 AM

#

Can you do the second one?

tight moth Nov 23, 2021, 8:33 AM

#

What do || mean?

hearty lynx Nov 23, 2021, 8:33 AM

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Parallel

tight moth Nov 23, 2021, 8:34 AM

#

Oh okay okay

tight moth Nov 23, 2021, 8:34 AM

#

hearty lynx And since they are equal, YZ=XW

Since they are equal and congruent?

hearty lynx Nov 23, 2021, 8:35 AM

#

tight moth Since they are equal and congruent?

Since it form by two equal inscribed angles

tight moth Nov 23, 2021, 8:36 AM

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Copy copy

#

I understand

#

How do i prove the angle YZU and angle WXU?

hearty lynx Nov 23, 2021, 8:37 AM

#

You can either prove YUZ triangle and XUW triangle are equal or using inscribed angles.

tight moth Nov 23, 2021, 8:39 AM

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So uhh triangle ZYU =triangle XWU

#

And the reason is SAS?

hearty lynx Nov 23, 2021, 8:39 AM

#

It can be SSS

tight moth Nov 23, 2021, 8:39 AM

#

tight moth So uhh triangle ZYU =triangle XWU

Can i put SAS as the reason for this?

tight moth Nov 23, 2021, 8:39 AM

#

hearty lynx It can be SSS

Oh alright

#

Okay i get it

#

Thank you @hearty lynx

hearty lynx Nov 23, 2021, 8:40 AM

#

catthumbsup

tight moth Nov 23, 2021, 8:40 AM

#

.close

full forumBOT Nov 23, 2021, 8:40 AM

#

Channel closed

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full forumBOT Nov 28, 2021, 4:55 PM

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tranquil totem Nov 28, 2021, 4:59 PM

#

Does someone know how to proof this?

full forumBOT Nov 28, 2021, 4:59 PM

#

tranquil totem Does someone know how to proof this?

tranquil totem Nov 28, 2021, 4:59 PM

#

glacial crane Nov 28, 2021, 4:59 PM

#

Prove what ?

#

Ln(n!)~... ?

tranquil totem Nov 28, 2021, 5:00 PM

#

1/2 ln(n) - I(n) + I(1/2)

glacial crane Nov 28, 2021, 5:01 PM

#

First ln(n!) Can be writtent as a sum

#

Sum of ln(k) for k=1 to n right ?

tranquil totem Nov 28, 2021, 5:03 PM

#

mhmm

#

are you trying to show the bottom equation of my picture?

#

or the first equation?

#

I am trying to proof the bottom one

#

so a_1 - b_1 + ... + = .... @glacial crane

glacial crane Nov 28, 2021, 5:12 PM

#

#

#

#

I hope you'll understand

tranquil totem Nov 28, 2021, 5:18 PM

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ty but this is a proof of the sterling formula

#

The sterling formula is given

tranquil totem Nov 28, 2021, 5:19 PM

#

tranquil totem so a_1 - b_1 + ... + = .... <@!184381299371409408>

I want to proof this

#

sorry if this is a misunderstanding

full forumBOT Nov 28, 2021, 5:34 PM

#

@tranquil totem Has your question been resolved?

full forumBOT Nov 28, 2021, 6:14 PM

#

@tranquil totem Has your question been resolved?

ashen stone Nov 28, 2021, 6:14 PM

#

I have a question

#

#

what’s steps would i take to solve this question

tranquil totem Nov 28, 2021, 6:18 PM

#

#❓how-to-get-help

full forumBOT Nov 28, 2021, 7:18 PM

#

@tranquil totem Has your question been resolved?

sand belfry Nov 28, 2021, 7:59 PM

#

ashen stone

you aren't supposed to post it on someone's else's help channel

full forumBOT Nov 28, 2021, 9:55 PM

#

@tranquil totem Has your question been resolved?

full forumBOT Nov 28, 2021, 11:55 PM

#

Channel closed

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#

torn jolt Nov 29, 2021, 12:15 AM

#

What does it mean for sets to be linearly independent?

#

I dont get why any additional assumption is necessary

#

First explain to me

#

Cause i dont get it

#

Why you even need any more assumptions

#

Then those that are already stated

#

Oh i see now

#

I actually though it was true at first wow

#

I found this interesting discussion

#

https://mathoverflow.net/questions/17740/is-there-a-version-of-inclusion-exclusion-for-vector-spaces

MathOverflow

Is there a version of inclusion/exclusion for vector spaces?

I am asking for a way to compute the rank of the 'join' of a bunch of subspaces whose pairwise intersections might be non-zero. So in the case n=2 this is just $\dim(A_1+A_2) = \dim(A_1) + \dim(A_2...

#

Seems like its a common mistake

ornate matrix Nov 29, 2021, 12:32 AM

#

I don’t think the “linearly independent” part is necessary

#

Just the (W1+W2) intersection W3=W1 intersection W3+W2 intersection W3 should be fine

full forumBOT Nov 29, 2021, 12:58 AM

#

@cosmic oriole Has your question been resolved?

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Channel closed

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torn jolt Nov 29, 2021, 1:08 AM

#

Determine x

full forumBOT Nov 29, 2021, 1:08 AM

#

torn jolt Determine x

#

@torn jolt Has your question been resolved?

hot herald Nov 29, 2021, 1:30 AM

#

what have you tried

full forumBOT Nov 29, 2021, 1:38 AM

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torn jolt Nov 29, 2021, 1:44 AM

#

.reopen

full forumBOT Nov 29, 2021, 1:44 AM

#

✅

torn jolt Nov 29, 2021, 1:45 AM

#

hot herald what have you tried

i tried 132/180 = x/9

#

132 representing arc of AB

full forumBOT Nov 29, 2021, 2:00 AM

#

@torn jolt Has your question been resolved?

bitter beacon Nov 29, 2021, 2:16 AM

#

draw lines AO and BO

#

and try to use triangle AOB

full forumBOT Nov 29, 2021, 2:32 AM

#

@torn jolt Has your question been resolved?

torn jolt Nov 29, 2021, 2:33 AM

#

thanks

full forumBOT Nov 29, 2021, 2:33 AM

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full forumBOT Nov 29, 2021, 3:34 AM

#

weak reef Nov 29, 2021, 3:41 AM

#

<@&286206848099549185>

meager dew Nov 29, 2021, 3:42 AM

#

wait 15 minutes to ping helpers

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what is your question

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hearty hare Nov 29, 2021, 4:11 AM

#

How do you translate each verbal sentence to mathematical sentence?

full forumBOT Nov 29, 2021, 4:11 AM

#

hearty hare How do you translate each verbal sentence to mathematical sentence?

fathom saddle Nov 29, 2021, 4:11 AM

#

There's no single method

hearty hare Nov 29, 2021, 4:11 AM

#

Eh worth it

hearty hare Nov 29, 2021, 4:12 AM

#

fathom saddle There's no single method

Wdym by that

tiny ivy Nov 29, 2021, 4:15 AM

#

there isn’t a math symbol for every word

fathom saddle Nov 29, 2021, 4:16 AM

#

Sometimes converting thought into a mathematical form is the hardest part of math haha

#

Like, we invent entire mathematical fields to help us do this.

hearty hare Nov 29, 2021, 4:18 AM

#

Alri alr thank you

#

Lemme ss

#

Cheese

#

.close

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pearl mango Nov 29, 2021, 4:27 AM

#

full forumBOT Nov 29, 2021, 4:27 AM

#

pearl mango

pearl mango Nov 29, 2021, 4:27 AM

#

help

north forum Nov 29, 2021, 4:28 AM

#

what's the graph?

terse karma Nov 29, 2021, 4:44 AM

#

Seems like the question is asking about a line but not mentioned so question is wrogn

full forumBOT Nov 29, 2021, 4:57 AM

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@pearl mango Has your question been resolved?

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distant barn Nov 29, 2021, 12:32 PM

#

What is this

full forumBOT Nov 29, 2021, 12:32 PM

#

distant barn What is this

distant barn Nov 29, 2021, 12:32 PM

#

sand belfry Nov 29, 2021, 12:32 PM

#

distant barn

It's called N choose n

hot herald Nov 29, 2021, 12:32 PM

#

factorial definition of binomial coefficient / combinations

sand belfry Nov 29, 2021, 12:32 PM

#

combination theory

distant barn Nov 29, 2021, 12:33 PM

#

thnak you

sand belfry Nov 29, 2021, 12:33 PM

#

distant barn thnak you

close it when you're done

distant barn Nov 29, 2021, 12:33 PM

#

.close

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boreal gate Nov 29, 2021, 1:19 PM

#

full forumBOT Nov 29, 2021, 1:19 PM

#

boreal gate

boreal gate Nov 29, 2021, 1:19 PM

#

HELPP

hollow geode Nov 29, 2021, 1:22 PM

#

Dashed means not included

full forumBOT Nov 29, 2021, 1:34 PM

#

@boreal gate Has your question been resolved?

cedar relic Nov 29, 2021, 1:40 PM

#

boreal gate

which one does not have greater/less than and equal to

#

dotted line represents that nothing can fall on the line

full forumBOT Nov 29, 2021, 1:49 PM

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native socket Nov 29, 2021, 2:22 PM

#

Hi. Please can anyone help me with this?

full forumBOT Nov 29, 2021, 2:22 PM

#

native socket Hi. Please can anyone help me with this?

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@native socket Has your question been resolved?

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full forumBOT Nov 29, 2021, 3:53 PM

#

sturdy shale Nov 29, 2021, 3:54 PM

#

derivative, what is your language?

vital breach Nov 29, 2021, 3:57 PM

#

The derivative is linear so you take the derivative of each one separately

#

$\dv{x} \qty(f(x) \pm g(x)) = f'(x) \pm g'(x)$

glossy valveBOT Nov 29, 2021, 3:58 PM

#

RipeOrange

full forumBOT Nov 29, 2021, 4:09 PM

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@rustic abyss Has your question been resolved?

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dull wasp Nov 30, 2021, 1:48 AM

#

full forumBOT Nov 30, 2021, 1:48 AM

#

dull wasp

dull wasp Nov 30, 2021, 1:48 AM

#

I'm not quite sure how to do this problem using U substitution

#

I have turned u = 2+x^3

#

but i dont know how to get rid of the X in the top

oak basin Nov 30, 2021, 1:51 AM

#

thats the right substitution

#

show me what you have tried with that

dull wasp Nov 30, 2021, 1:51 AM

#

so I think i have progressed

#

I have u = 2+x^3

#

so i derive to get du/dx = 3x^2

oak basin Nov 30, 2021, 1:52 AM

#

yes

dull wasp Nov 30, 2021, 1:52 AM

#

so can I subsitute 4du/dx in the top

#

to make it 4dudx/sqrt (U)

oak basin Nov 30, 2021, 1:52 AM

#

yes

dull wasp Nov 30, 2021, 1:53 AM

#

hm

oak basin Nov 30, 2021, 1:53 AM

#

now move the du/dx to the other side

dull wasp Nov 30, 2021, 1:53 AM

#

can I take the 4

#

out

oak basin Nov 30, 2021, 1:53 AM

#

what do you get on the right hand side?

dull wasp Nov 30, 2021, 1:53 AM

#

well right now I have dy/dx = 4 dudx/ sqrt(u)

oak basin Nov 30, 2021, 1:53 AM

#

yes

#

divide both sides by du/dx

dull wasp Nov 30, 2021, 1:53 AM

#

then I have dydu/dx?

oak basin Nov 30, 2021, 1:53 AM

#

no

dull wasp Nov 30, 2021, 1:54 AM

#

dy/du

#

?

oak basin Nov 30, 2021, 1:54 AM

#

yes

#

the reason is (dy/dx)/(du/dx) = dy/du

#

i.e the chain rule

dull wasp Nov 30, 2021, 1:54 AM

#

ah that makes sense

oak basin Nov 30, 2021, 1:55 AM

#

so i suppose you know how to go further with this

dull wasp Nov 30, 2021, 1:55 AM

#

I think so

oak basin Nov 30, 2021, 1:55 AM

#

ok then, close the channel if you have no further question

dull wasp Nov 30, 2021, 1:55 AM

#

if I integrate

#

I get 8u^1.2

#

1/2

#

but I thought it was asking for y

#

oh wait

oak basin Nov 30, 2021, 1:55 AM

#

yes

dull wasp Nov 30, 2021, 1:56 AM

#

would integrating both sides with respect to U remove the du on the bottom

oak basin Nov 30, 2021, 1:56 AM

#

y=8sqrt(u)

#

now just substitute back

oak basin Nov 30, 2021, 1:56 AM

#

dull wasp would integrating both sides with respect to U remove the du on the bottom

well no

#

dy/du is the derivative of y wrt to u

#

so when you integrate it wrt u

#

it becomes y

dull wasp Nov 30, 2021, 1:56 AM

#

oh it just turns into y

#

tysm

#

🙏

#

.close

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karmic narwhal Nov 30, 2021, 2:16 AM

#

can anyone help me with b?

full forumBOT Nov 30, 2021, 2:16 AM

#

karmic narwhal can anyone help me with b?

hollow geode Nov 30, 2021, 2:17 AM

#

karmic narwhal can anyone help me with b?

what have you tried?

karmic narwhal Nov 30, 2021, 2:18 AM

#

nothing idk what to do

hollow geode Nov 30, 2021, 2:20 AM

#

Find the derivative with respect to x

#

That's what you're asked to do

karmic narwhal Nov 30, 2021, 2:21 AM

#

.. ok

#

so what do i do? im clueless

hollow geode Nov 30, 2021, 2:24 AM

#

well you have a composition of functions... what derivative rule deals with that?

karmic narwhal Nov 30, 2021, 2:24 AM

#

oh i dont think ive learnt about that yet

hollow geode Nov 30, 2021, 2:25 AM

#

...

#

Chain rule.

karmic narwhal Nov 30, 2021, 2:25 AM

#

oh nvm

#

how would i use the chain rule?

hollow geode Nov 30, 2021, 2:27 AM

#

same way as any other time

karmic narwhal Nov 30, 2021, 2:29 AM

#

ok

#

got it

#

.close

full forumBOT Nov 30, 2021, 2:30 AM

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Channel closed

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weak lodge Nov 30, 2021, 2:53 AM

#

This might be a reading comprehension issue more than anything, but I'm having trouble seeing why solving for $q_1a$ versus $q_2a$ versus $q_3a$ would give different answers

full forumBOT Nov 30, 2021, 2:53 AM

#

weak lodge This might be a reading comprehension issue more than anything, but I'm having t...

weak lodge Nov 30, 2021, 2:53 AM

#

it's the same equation regardless of the subscript, isn't it?

glossy valveBOT Nov 30, 2021, 2:54 AM

#

cgodfrey

weak lodge Nov 30, 2021, 3:02 AM

#

.close

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spring prairie Nov 30, 2021, 3:16 AM

#

i need help

full forumBOT Nov 30, 2021, 3:16 AM

#

spring prairie i need help

meager dew Nov 30, 2021, 3:18 AM

#

cool

full forumBOT Nov 30, 2021, 3:31 AM

#

@spring prairie Has your question been resolved?

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deft crypt Nov 30, 2021, 4:08 AM

#

-3(4-3x)=9x-12

full forumBOT Nov 30, 2021, 4:08 AM

#

deft crypt -3(4-3x)=9x-12

deft crypt Nov 30, 2021, 4:08 AM

#

I got no solution for that

terse karma Nov 30, 2021, 4:08 AM

#

There are infinite solution for that in R

deft crypt Nov 30, 2021, 4:08 AM

#

R?

terse karma Nov 30, 2021, 4:08 AM

#

Real numbers

novel umbra Nov 30, 2021, 4:08 AM

#

whats your lesson tho?

terse karma Nov 30, 2021, 4:09 AM

#

Not here zuyu

novel umbra Nov 30, 2021, 4:09 AM

#

why does everybody say Zuyu

#

lol

terse karma Nov 30, 2021, 4:09 AM

#

Cuz T is silent

novel umbra Nov 30, 2021, 4:09 AM

#

terse karma Not here zuyu

no i

#

sent a solution

deft crypt Nov 30, 2021, 4:09 AM

#

But as a number itd be written as 0=0?

novel umbra Nov 30, 2021, 4:09 AM

#

for him

novel umbra Nov 30, 2021, 4:09 AM

#

terse karma Cuz T is silent

its Chewy

novel umbra Nov 30, 2021, 4:09 AM

#

deft crypt But as a number itd be written as 0=0?

Hm

#

well

terse karma Nov 30, 2021, 4:10 AM

#

deft crypt But as a number itd be written as 0=0?

Yes thats why whatever x you chose LHL=RHL

#

This is like saying x=x

novel umbra Nov 30, 2021, 4:10 AM

#

lol

deft crypt Nov 30, 2021, 4:10 AM

#

lol, thanks

terse karma Nov 30, 2021, 4:11 AM

#

That's 9x-12 on right not 9×-12

novel umbra Nov 30, 2021, 4:11 AM

#

oh

#

shit

#

lemme just erase that

deft crypt Nov 30, 2021, 4:12 AM

#

So does this as a response make sense?

novel umbra Nov 30, 2021, 4:12 AM

#

mathematically yes

terse karma Nov 30, 2021, 4:12 AM

#

deft crypt So does this as a response make sense?

Write LHL=RHL instead

deft crypt Nov 30, 2021, 4:13 AM

#

Thanks alot ;D

#

.close

full forumBOT Nov 30, 2021, 4:13 AM

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Channel closed

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calm field Nov 30, 2021, 4:22 AM

#

can someone please explain how to solve this step by step

full forumBOT Nov 30, 2021, 4:22 AM

#

calm field can someone please explain how to solve this step by step

light sonnet Nov 30, 2021, 4:27 AM

#

calm field can someone please explain how to solve this step by step

Calculate the amount of cars at 6am and 11am using the given equation, then subtract the two values

full forumBOT Nov 30, 2021, 4:37 AM

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@calm field Has your question been resolved?

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nimble urchin Nov 30, 2021, 5:51 AM

#

if I have x R y (R for relation) where x is a multiple of y, how can I test if it is transitive?

full forumBOT Nov 30, 2021, 5:51 AM

#

nimble urchin if I have x R y (R for relation) where x is a multiple of y, how can I test if i...

fathom saddle Nov 30, 2021, 5:52 AM

#

You want to set up a case where
xRy and yRz

#

If x is a multiple of y
and y is a multiple of z
is x a multiple of z?

nimble urchin Nov 30, 2021, 5:55 AM

#

if I set x=2, y=4, z=8 I can make it happen

#

I think it'll work for all cases if I set x=2

#

Hmm, actually it seems true

#

Even if x=5, y=15, z=30 it workls

#

so I think it is transitive

glossy valveBOT Nov 30, 2021, 6:01 AM

#

#

#

#

#

#

#

nimble urchin Nov 30, 2021, 6:11 AM

#

x=cy and y=dz
so x=dz * y
and q (the common multiple of x and z?) would be d*y here
I think i get it but still feel confsued so im going to think about it thank you~

#

oops actually

#

x= c * dz

#

so q= cd

glossy valveBOT Nov 30, 2021, 6:14 AM

#

nimble urchin Nov 30, 2021, 6:15 AM

#

what does closed mean?

glossy valveBOT Nov 30, 2021, 6:19 AM

#

nimble urchin Nov 30, 2021, 6:22 AM

#

Product and sum right?

glossy valveBOT Nov 30, 2021, 6:23 AM

#

#

#

nimble urchin Nov 30, 2021, 6:24 AM

#

In my case, rather than jk it would be cd?

glossy valveBOT Nov 30, 2021, 6:25 AM

#

nimble urchin Nov 30, 2021, 6:26 AM

#

so basically closed under multiplication means that it will return something in the same universe as long as it is multiplication?

#

I see, thank you! Glad to learn something new ( term:closed)

#

.close

full forumBOT Nov 30, 2021, 6:29 AM

#

Channel closed

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velvet latch Nov 30, 2021, 6:53 AM

#

I am having a hard time figuring out what I need to do to start this?

full forumBOT Nov 30, 2021, 6:53 AM

#

velvet latch I am having a hard time figuring out what I need to do to start this?

velvet latch Nov 30, 2021, 7:06 AM

#

Yea

#

You'll have to give me a sec it is 2 am

#

What is that

#

It just popped up

#

I pressed on it and it showed up

#

While I was typing

#

Wym by this

#

Oh

#

Oh yeah yeah yeah right angle triangle

#

Pythagorean theorem

#

?

#

It can't be that easy

#

Is it really 41 = 9 + x

#

Wait

#

No

#

Sorry

#

Yeah

#

Y=Ax+b?

#

Aaah

#

Im sorry I'm overthinking

#

Yeah A^2+B^2=C^2

#

9^2+40^2?

#

so 9^2+x^2?

#

instead of just plugging in 40 have it written like that

#

yeah

#

since it's coming closer would 7ft/s be negative or no?

#

alright

#

so dx/dt is -7

#

so 9^2-7^2?

#

or would I multiply -7 with 40 first

#

i don't

#

prof just gave us a basic idea but I should've studied and hammered in on it more

#

f(x)=9^2+x^2 right?

#

oh ook ok

#

square root it?

#

then 9+x ?

#

alright alright so if I need o do chain rule

#

since x squared would be my g

full forumBOT Nov 30, 2021, 7:48 AM

#

@velvet latch Has your question been resolved?

velvet latch Nov 30, 2021, 7:48 AM

#

again i'm sorry being really slow rn

#

y=Sqrt(9^2+x^2)

#

chain rule is f'(g(x) * g'(x)

#

so i apply chain rule

#

(dy/dx'(dx/dt))(dx/dt')

#

which would look like that?

#

I know and I'm honest to God trying

#

I'm really sorry

#

I am just blank rn

#

.close

full forumBOT Nov 30, 2021, 7:58 AM

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full forumBOT Dec 2, 2021, 4:10 AM

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lavish orbit Dec 2, 2021, 4:11 AM

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full forumBOT Dec 2, 2021, 4:11 AM

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lavish orbit

torn gust Dec 2, 2021, 4:22 AM

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it's a programming problem tooru

lavish orbit Dec 2, 2021, 4:23 AM

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They asked a programming question on a math trivia nice

torn gust Dec 2, 2021, 4:24 AM

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I'm assuming this class counts 1 as a factor right

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4 factors means it looks like prime*prime, and there's no math way to count those

lavish orbit Dec 2, 2021, 4:25 AM

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Yep counted 1

full forumBOT Dec 2, 2021, 4:40 AM

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west fog Dec 2, 2021, 4:51 AM

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How is the answer b? I don’t understand the way to get there. I’m guessing the base is 8 of a little triangle is 8?

full forumBOT Dec 2, 2021, 4:51 AM

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west fog How is the answer b? I don’t understand the way to get there. I’m guessing the b...

full forumBOT Dec 2, 2021, 5:08 AM

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full forumBOT Dec 2, 2021, 5:23 AM

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full forumBOT Dec 2, 2021, 5:40 AM

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rich arch Dec 2, 2021, 5:41 AM

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How would I calculate the margin of error when I don’t have the standard deviation?

full forumBOT Dec 2, 2021, 5:58 AM

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@rich arch Has your question been resolved?

rich arch Dec 2, 2021, 5:58 AM

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<@&286206848099549185>

full forumBOT Dec 2, 2021, 6:30 AM

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full forumBOT Dec 2, 2021, 6:55 AM

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full forumBOT Dec 2, 2021, 7:24 AM

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full forumBOT Dec 2, 2021, 11:10 PM

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solar violet Dec 2, 2021, 11:31 PM

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full forumBOT Dec 2, 2021, 11:31 PM

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solar violet

solar violet Dec 2, 2021, 11:31 PM

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so i wrote the same thing but transposed...

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is that incorrect?

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ITS NOT EVEN TRANSPOSED ACTUALLY

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sorry for the caps

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0.5 0.25 0.25
0.5 0.5 0
0.5 0 0.5

is my matrix

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but that seems more correct 🤔

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or i guess the above implementation works if u use column vector after matrix but i guess im used to using markov transition probability format

full forumBOT Dec 2, 2021, 11:56 PM

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oak vale Dec 3, 2021, 12:16 AM

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Could someone help please ?

full forumBOT Dec 3, 2021, 12:16 AM

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oak vale Could someone help please ?

heady plank Dec 3, 2021, 12:29 AM

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i think the answer is that it is inverted

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if u factor out the 2 in the power for f(x) and square 3/2 u get 9/4

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to power of x-1

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rather than 1-x like g(x)

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therefore it is put to power of -1 which is inverting it

full forumBOT Dec 3, 2021, 12:36 AM

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@oak vale Has your question been resolved?

oak vale Dec 3, 2021, 12:46 AM

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Thanks do you know how can I show my work for it

full forumBOT Dec 3, 2021, 1:16 AM

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@oak vale Has your question been resolved?

full forumBOT Dec 3, 2021, 1:39 AM

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dark stream Dec 3, 2021, 2:27 AM

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.open

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Hi I was trying to solve this problem

full forumBOT Dec 3, 2021, 2:28 AM

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dark stream Hi I was trying to solve this problem

dark stream Dec 3, 2021, 2:28 AM

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this was the correct answer

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this was solved because since the integral squares r you can calculate that region as being the quadrant of pi/2 to pi

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but they say it can be negative

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when I graphed this on desmos I got

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why is it when I integrate the region in quadrant 2 I get the result for integrating quadrant 4.

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I get that when you square r the negative and positives both evaluate to the same results.

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but why is the key for the values im integrating corresponding to the negative graph?

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thank you

full forumBOT Dec 3, 2021, 2:55 AM

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@dark stream Has your question been resolved?

full forumBOT Dec 3, 2021, 3:25 AM

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@dark stream Has your question been resolved?

full forumBOT Dec 3, 2021, 4:25 AM

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@dark stream Has your question been resolved?

dark stream Dec 3, 2021, 4:30 AM

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anyone?

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<@&286206848099549185>

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<@&268886789983436800>

light sonnet Dec 3, 2021, 4:57 AM

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dark stream <@&268886789983436800>

Why did you ping mods? Because if you're looking for help, you don't ping mods for that

dark stream Dec 3, 2021, 4:57 AM

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light sonnet Why did you ping mods? Because if you're looking for help, you don't ping mods f...

I thought you ping people for help

light sonnet Dec 3, 2021, 4:57 AM

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Not the mods

dark stream Dec 3, 2021, 4:57 AM

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light sonnet Not the mods

oh

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srry

light sonnet Dec 3, 2021, 4:58 AM

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The mods aren't here to help, they can help if they want to but they're here to keep an eye on things

dark stream Dec 3, 2021, 4:58 AM

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light sonnet The mods aren't here to help, they can help if they want to but they're here to ...

my bad wont happen again

light sonnet Dec 3, 2021, 5:00 AM

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Also, stop ping replying

dark stream Dec 3, 2021, 5:00 AM

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light sonnet Also, stop ping replying

like dont ping the helpers?

light sonnet Dec 3, 2021, 5:01 AM

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dark stream like dont ping the helpers?

I mean stop ping replying to me

light sonnet Dec 3, 2021, 5:01 AM

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dark stream my bad wont happen again

It's annoying

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Like that

dark stream Dec 3, 2021, 5:02 AM

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ah my bad again I dont use discord often

torn gust Dec 3, 2021, 6:36 AM

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you're asking why the region pi/2 to pi shows up in quadrant 4?

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@dark stream

dark stream Dec 3, 2021, 6:37 AM

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Yes, I don't know why it is using -r graph instead of r for the region im integrating

torn gust Dec 3, 2021, 6:38 AM

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so area is always positive, but an integral gives you signed area

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like if the curve goes below 0, then it'll add negative numbers

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so you can add a negative to get the positive area you want

dark stream Dec 3, 2021, 6:42 AM

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but why does integrating pi/2 to pi give the area of 3pi/4 to 2pi?

torn gust Dec 3, 2021, 6:43 AM

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um if you draw the function with a pencil you'll see that's where the function goes after it leaves the 1st quadrant

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it's more like a negative r value in the 2nd quadrant

dark stream Dec 3, 2021, 6:44 AM

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sorry I am confused

torn gust Dec 3, 2021, 6:45 AM

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like here are arrows for the path

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and remember going along the path just means increasing theta

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so this bottom right part has to be for theta from pi/2 to pi

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since it comes right after pi/2

dark stream Dec 3, 2021, 6:46 AM

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ooooh

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thank you so much

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.close

full forumBOT Dec 3, 2021, 6:46 AM

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Channel closed

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full forumBOT Dec 4, 2021, 5:37 PM

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mossy bane Dec 4, 2021, 7:20 PM

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full forumBOT Dec 4, 2021, 7:20 PM

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mossy bane

mossy bane Dec 4, 2021, 7:20 PM

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is there a standard way to simplify this

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like sum of 1+2+3... n = n/2 (n+1)

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is there soemthing similar for x^1 + x^2 ... x^n

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wtf am i saying it just a geometric series

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LOL

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.close

full forumBOT Dec 4, 2021, 7:23 PM

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Channel closed

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full forumBOT Dec 4, 2021, 8:29 PM

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feral kraken Dec 4, 2021, 8:32 PM

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.close

full forumBOT Dec 4, 2021, 8:32 PM

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Channel closed

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full forumBOT Dec 5, 2021, 4:29 PM

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gleaming island Dec 5, 2021, 4:31 PM

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I really do struggle with these kind of questions and I'm not too sure where to start

full forumBOT Dec 5, 2021, 4:31 PM

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gleaming island I really do struggle with these kind of questions and I'm not too sure where to ...

gleaming island Dec 5, 2021, 4:40 PM

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.close

full forumBOT Dec 5, 2021, 4:40 PM

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Channel closed

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fresh hazel Dec 5, 2021, 4:49 PM

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help

full forumBOT Dec 5, 2021, 4:49 PM

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fresh hazel help

fresh hazel Dec 5, 2021, 4:49 PM

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<@&286206848099549185>

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help plz i need to do this its due soon

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@sweet ingot

full forumBOT Dec 5, 2021, 5:24 PM

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@fresh hazel Has your question been resolved?

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torn jolt Dec 5, 2021, 5:37 PM

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hi

full forumBOT Dec 5, 2021, 5:37 PM

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torn jolt hi

torn jolt Dec 5, 2021, 5:37 PM

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Determine ∠θ, −360° ≤ θ ≤ 360°. Round to one decimal place.

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how could i do a question like this