tight herald
So find the area of the base
#help-13
next thicket
spring zealot
Can somebody help me calculate this in years?
cedar kilnBOT
Can somebody help me calculate this in years?
gaunt hamlet
The length of the video?
spring zealot
Yeah
spring zealot
Oh wait really
gaunt hamlet
Well, the time says 67:34:46. That's 67 hours, 34 minutes, and 46 seconds
spring zealot
Oh I’m on mobile so that’s why I don’t see it as 67hrs
For me it goes all the way to positive to negitive numbers
gaunt hamlet
That's odd. I'm on mobile, but the time displays just fine for me
gaunt hamlet
Damn
uncut quest
hiii, i need help on this question
cedar kilnBOT
hiii, i need help on this question
bold lotus
i dont think we can help with exams
mental rain
Can someone give me another example of this:
https://www.desmos.com/calculator/gnfqi7zhbg
cedar kilnBOT
Available help channel!
lament spindle
dose someone know how i would find the value of cd
cedar kilnBOT
dose someone know how i would find the value of cd
lament spindle
CD
sonic thistle
Yeah sty
lament kraken
dose someone know how i would find the value of cd
what do you know about the similar triangles ZYX and DYC
sonic thistle
And CYD*
lament spindle
that they share the same angles
sonic thistle
No
lament spindle
that the sides are propotional to each other
lament spindle
YX/YC = YZ/YD
lament spindle
ZX/DC
wraith daggerBOT
Master Oogway
sonic thistle
But what is xy/cy
lament spindle
1/2
sonic thistle
No
lament spindle
2
lament spindle
solve
lament spindle
How did you know DC and ZX were parallel
lament spindle
nope
sonic thistle
,w 16/x=2/1
wraith daggerBOT
lament spindle
ty
sonic thistle
Np
lament spindle
.close
elfin condor
Can someone help me check if this is done correctly? (method-wise)
normal wadi
cedar kilnBOT
@normal wadi Has your question been resolved?
cedar kilnBOT
cedar kilnBOT
Available help channel!
median summit
cedar kilnBOT
median summit
Can someone help with q14
cloud wave
im a young man that has never opened a math book so can someone explain why is that there?
median summit
It’s distributive property but I already asked for help on this channel
@cloud wave
cloud wave
shit
cloud wave
It’s distributive property but I already asked for help on this channel
sorry for that and idk what that distributive property mean since my enligh aint that good welp ill just fail the class
median summit
<@&286206848099549185>
spark igloo
square on both side in eqn |a+b|=sqrt3
spark igloo
ahh
wraith daggerBOT
GG・Goof
spark igloo
use this identity
cedar kilnBOT
@median summit Has your question been resolved?
median summit
<@&286206848099549185>
cedar kilnBOT
@median summit Has your question been resolved?
hardy plover
hello
hardy plover
What is the resultant of these 2 vectors
- I want a fast way to do it on the calculator
crystal raptor
Find the horizontal and vertical components of E2 using trig
hardy plover
I tried 3.9*10^-5 angle 90 + 1.8 x 10^5 angle -53.1
but I didn't get the results correct idk why
hardy plover
Find the horizontal and vertical components of E2 using trig
i don't want to solve it the componenets
this wastes time
crystal raptor
How does it waste time, its literally how you do it
cedar kilnBOT
cedar kilnBOT
Available help channel!
rocky sand
cedar kilnBOT
rocky sand
Yh idrk how to proceed
gaunt hamlet
What have you tried?
rocky sand
rocky sand
Remember that 1/sinu = cscu
Thanks bro it worked
thick sorrel
is this edexcel A level math?
rocky sand
Lol it got me too
rocky sand
Yep yesterday
thick sorrel
same here
rocky sand
What does that mean
thick sorrel
9MA0 then
thick sorrel
it was fine - i wasn't able to do the last question though because i forgot
i had enough time but i was just stuck
rocky sand
i ran out of time lol
thick sorrel
howd you find it then oof
rocky sand
it was pretty hard but mostly bc i forgot how to do some things
i missed out 1 question and messed up a few others so not too good
also everyone was saying that the last question was parametric integration but i did integraiton by parts lol
thick sorrel
yeah it was integration for parametric
also the dy/dx question for the velocity of the car messed me up, i wasnt able to get the dy/dx equation
thick sorrel
i definitely think i can go for an A*, i practiced really hard for math
and threshhold for an A* is like, 215 out of 300 if im not wrong (on average)
wbu
rocky sand
i was aiming for like an A but i managed my time shitty so i didnt have time for everything so now im just aiming for a B
its not even like maths is hard its just that i didn't take it seriously until too late but whatever my own fault yk
thick sorrel
yeah i got it
you still have a chance for an A though
all the best for paper 2 and paper 3 if you're doing it, my man^^
tribal token
I need to find a formula for an (not recursive)
cedar kilnBOT
I need to find a formula for an (not recursive)
bitter reef
you can write $a_n$, then write the $a_{n - 1}$ inside it and so on until you see a pattern
wraith daggerBOT
Doggo
tribal token
that's what they did in the solution but I don't understand this step
cedar kilnBOT
@tribal token Has your question been resolved?
cedar kilnBOT
@tribal token Has your question been resolved?
crimson sedge
I need to find a formula for an (not recursive)
Have you tried with the characteristic polynomial?
raw thicket
a theatre has 840 seats. For one performance, the theatre was 75% full. How many people were in the theatre?
buoyant latch
a theatre has 840 seats. For one performance, the theatre was 75% full. How many...
How many people would be in the theatre if it was 100% full
buoyant latch
If the theatre can sit 840 people and it was completely full how many people are there
kind blaze
I need help
buoyant latch
I need help
cedar kilnBOT
@raw thicket Has your question been resolved?
kind blaze
I have been trying to solve this many times but still haven’t gotten the right answer
versed fulcrum
Khan academy moment
kind blaze
🙂
versed fulcrum
Do you know what a mean is?
kind blaze
Yes
versed fulcrum
What is it?
kind blaze
You have to add all the numbers and then divide by how many numbers there are
Right?😟
kind blaze
Alr lemme just get it, I am using a calculator rn
versed fulcrum
Your answer must have been erroneous because you forgot to do something.
versed fulcrum
It's not 41
kind blaze
I added wrong
I just realized
40
Oh da,m
damn
I just got the question right
It was 10😭
cedar kilnBOT
@kind blaze Has your question been resolved?
buoyant lichen
when rotating around a point that is not the origin
cedar kilnBOT
when rotating around a point that is not the origin
buoyant lichen
why would you subtract the shape your rotating by the point instead of add the point to it's coordinates
ex: point a = [2,3] rotate shape ABCD 90 degrees where a=[2,3] b=[2,4] c=[3,6] d=[5,6] and you subtract [2,3] from each then rotate then add back
where im thinking you should add [2,3], rotate, then subtract it
simple shale
coriolis?
hazy minnow
why would you subtract the shape your rotating by the point instead of add the p...
Yes, translate it to the origin, rotate then translate back.
buoyant lichen
when you translate it to the origin
what do you mean
im trying to get into the nitty gritty of it
simple shale
if point is off the origin by a vector
hazy minnow
when you translate it to the origin
Like translate the shape your rotating by adding -p. Where p is the point of rotation.
buoyant lichen
why would you add -p instead of p
buoyant lichen
but if the shape hasn't already been shifted, shouldn't you add [2,3] to make [2,3] it's origin
hazy minnow
What is [2,3]?
simple shale
if some point a has [2,3]
hazy minnow
Ok, you want to rotate a point x around p right?
simple shale
then you add [-2,-3] to set it to [0,0]
buoyant lichen
well shape or point yea
hazy minnow
just have to do is just translate x by adding -p. The map x -> x-p. If x = p we have it’s at the origin after the transformation.
buoyant lichen
sorry, im trying to get a more inuitive understanding
your telling me to subtract p but not why that works
hazy minnow
Ok, draw a point x.
hazy minnow
Imagine a circle where p is the origin and x is a point on the circle.
Visualize what’s happens when your translate p to the origin.
The circle moves along with it.
buoyant lichen
but why would x be a point on the circle in the first place
wouldn't it be a point of the circle of the origin
since it hasn't been shifted yet
hazy minnow
why are you considering the point of the circle of the origin? We’re trying to rotate around p, x would be moving in a circle with center p. This is what is happening and we are trying to achieve that.
hazy minnow
The translation. x -> x-p.
The whole reason we’re trying to move everything to the origin, is because we have a easy way to rotate around the origin.
I will try to find additional sources online to explain it better than I am.
Ok I draw it out, can’t find anything good online.
hazy minnow
We’re trying to rotate x around p, that is take x to x’.
We first translate x to x-p.
f(x) = x-p, f(x’) = x’-p.
So we can translate x and the rotate then translate back.
I hope this was clearer.
buoyant lichen
i think i understand
ill need to do some work on my own to understand
though that often includes most things tbh
thanks for the help, i think ill be able to better understand it with ur approach
hazy minnow
Definitely. I tell you, I didn’t get this properly the first time I learned it.
So you will definitely get it.
narrow bison
Having trouble setting this one up
cedar kilnBOT
Having trouble setting this one up
narrow bison
This correct?
cedar kilnBOT
@narrow bison Has your question been resolved?
narrow bison
<@&286206848099549185>
cedar kilnBOT
@narrow bison Has your question been resolved?
narrow bison
<@&286206848099549185>
cedar kilnBOT
@narrow bison Has your question been resolved?
cedar kilnBOT
@narrow bison Has your question been resolved?
narrow bison
.close
cedar kilnBOT
cedar kilnBOT
Available help channel!
crimson sedge
How much would a 24ct bullion weigh??
cedar kilnBOT
How much would a 24ct bullion weigh??
crimson sedge
Btw I’m really tired and I need help :/
Use unitary method
im in year 7
btw
?
what is unitary method
Basically
oh
ik what it is
Use that then
would i have to get the approximate
because its not exactly accurate
Take 9ct ---- 11.16 g/cm^3
Then what will be 1 ct
"accurate"?
idk can you tell me
what 1ct is
If you have 9 ct as 11.16 density
Take 1 ct as x density
How would u find x now
idk
Try once.
you divide it by 9
?
Yes
But do you know the procedure
How you reach that
ye
11.16 divided by 9
Yes how do you reach that
I can explain if u want
and i get 1.24 in density
yes pls
Okay
You see
Do u know about ratio and proportion?
no
Ah
Okay so
U have a fraction
a/b
Okay?
yep
Now think
Both a and b are same quantities
Quantities as in
Same unit
Like 3 meters / 2 meters
4 density / 2 density
2 kg / 4 kg
And so on
Okay?
yes
You represent such fractions
As a:b
"a is to b"
Which is same as a/b
But a and b have same quantities
Okay?
yes
Now
When you want to compare ratios
Of two different quantities
Example ratio of weight of sugar in kg is 2:3
And ratio of surface area of the sugar bags is 8:9
And the ratio of surface area of sugar bag changes when the ratio of weight in kg changes
Just an example
Then we say both ratios are in proportion
Okay?
yep
can you pls give an example of the ratios changing
Sure
Say
Ratio of speeds of two cars
Is 4:5
And the distance covered of them is 20:21
When the ratio of speeds change
The distance also change
Like when u have more speed
More distance is covered
Okay?
so if the speeds changed to 6:7
Distance ratio will also change
what would the distance covered change to
It will change to smth
I have to calculate
But still you get the notion right
yes
Okay
So you have 9 ct as 11.16 density
You have 1 ct as x
How u could use the ratio and proportion as I used earlier
Here
@crimson sedge
Remember 9ct and 1 ct are same quantities
And 11.16 density and x density are same quantities
Try again
9:1
Yes and density?
11.6:x
Yes
Are they in proportion?
yes
Why
because if one changes the other has to change otherwise it will be incorrect?
Yes
Good
Now you can represent 9:1 as 9/1 right
yes
Which is 9
And 11.16:x as?
11.6/x
So 9 = 11.16/x
Solve for x
Because two ratios are proportional
Okay?
yes
What do u get
x = ?
give me a second
Sure
Try to separate x on one side
And numbers on the other
wrt to the "=" sign
You need help?
yes please
Okay
Think of any equation as a weight machine with two plates
You've seen one right
i think
oh yeah
When u add weight on one side
The other one comes up
To maintain the equality you add the same weight to the other side too
Right?
yes
So say you have x-5 = 5
When you add "5" to the left hand side (x-5)
What will happen to the right hand side
they become equal
How
You add 5 to x-5
What does it mean
idk
x-5 + 5
Right?
"add"
thats 10
right
-5 + 5
Think
0?
Yes
So left hand side is x+0
Which is x
Right hand side is ?
crimson sedge
When u add weight on one side
Think of this
You added 5 on one side
On the other what will happen
Sorry
what happened
Let me re frame
You added
5 on one side
The equality is broken right?
yes
crimson sedge
To maintain the equality you add the same weight to the other side too
See this
What will happen to the right hand side then
oh so i need to make 9/1 and 11.6/x equal fractions?
No
oh
crimson sedge
What will happen to the right hand side then
Just answer this
We'll go on that after this
you need to add five to the right side
Yes
So x - 5 +5 = 5 +5
x = 10
Why did we add five?
to balance it
The main reason?
On both sides
because they are proportional
Nono
That's only for ratios
oh mb
you added 5 on both sides
Because you isolated x
you had x-5 = 5 right
You wanted to find x
In the end you got x=10
So you isolate numbers around to find x
While maintaining the equality
Okay?
ok
So for 9 = 11.16/x
How would you isolate or separate x?
Remember it's an equation now
And use multiplication or division operations here ^
i think we have to divide?
But we have to find x right
yes
We want to isolate it
From the denominator
Yknow what's denominator right
yes
So how will you remove x from denominator
And "bring it up"
In the end you always aim to get x = something
That's why we isolate x
If you multiply x to both sides to maintain the equality
In the equation 9 = 11.16/x
What will happen
9x=11.16?
Perfect
oh
i think i get it
That's what I meant to isolate x from the denominator
Yes
Last step is...?
x = ...?
Think how will you isolate x here now
From 9x
You want to extract x
In the left hand side
so we need to find what times 9 equals 11.16
Yes
In other words
You want to find x
How will u isolate x from 9x?
Dividing by 9 right?
oh yeah
we divide both sides by 9
Yes
To maintain the equality
So you have x = 11.16/9 = 1.24
yes
So 1ct is 1.24 density
This is unitary method
You find the unit quantity of the quantity you want to find
You found unit of ct
Where 1 ct is 1.24 density
so 24 ct is
You wanted to find 24ct
yes
Yes what is it
24 times 1.24?
Perfect that is the density
so then what is the weight
of 24ct
Can u send the question pic again
The whole question
Not cut off
I’m just need to do the 24ct part
Also 14ct is 23555g
In weight
And I’m trying to find the weight
Of 24ct
Then use unitary method for that
Alrifht
Before we got 1.24 answer of 1ct which is the density
If u have 14ct ----- 23555g
Find 1ct
Then find 24ct
24 ct is 40380g
,w 23555/14
wraith daggerBOT
crimson sedge
,w 1682.5 × 24
wraith daggerBOT
crimson sedge
yay
Correct 👍
tysm
Welcome
thank you
very nice stranger
You may close the thread with .close
.close
cedar kilnBOT
crimson sedge
Also what did this mean?
it is year 8 work
buoyant latch
What a shame wasting this valuable resource space
cedar kilnBOT
@echo herald Has your question been resolved?
cedar kilnBOT
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Available help channel!
solid mango
Using logic, do you equivalent the () then inverse using left hand side?
wooden harness
when you negate a bracket, you negate everything inside
including the or operator
well, it's not exactly like and is the negation of or, but you can think of it that way
cedar kilnBOT
@solid mango Has your question been resolved?
cedar kilnBOT
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Available help channel!
idle trout
cedar kilnBOT
modern compass
They factored it
obsidian coral
Make x = tan(x/2)
So the equation looks like 0 = 5x^2 +24x - 5
Then factor that, plug back in tan(x/2)
idle trout
how
obsidian coral
What do you mean how?
idle trout
where did the 24 go
obsidian coral
Do you know how to factor?
obsidian coral
Greatest common factor
idle trout
ye i know that
obsidian coral
Yes
obsidian coral
No
obsidian coral
25 and -1 aren't the roots
idle trout
the opposite sign
obsidian coral
No
idle trout
as in you factorise them
obsidian coral
I suggest you review factoring
idle trout
like you have to plug 25x and -x into the equation
and then factorise then group
then NFL
(null factor law)
obsidian coral
Because you're using 25 and -1 to get it into the line 2, that you wrote
idle trout
then find what and -
got it
thank you so much @obsidian coral
i appreciate your help
sorry for my wrong use of terminology/understanding
thank you
.close
cedar kilnBOT
cedar kilnBOT
Available help channel!
lost parrot
why does it need to be a proper subset and not just a subset?
cedar kilnBOT
why does it need to be a proper subset and not just a subset?
@lost parrot Has your question been resolved?
cedar kilnBOT
cedar kilnBOT
Available help channel!
cedar kilnBOT
devout radish
Pythagorean theorem
sonic thistle
,rotate
wraith daggerBOT
sonic thistle
do you know pythagorean theorem?
wraith daggerBOT
cedar kilnBOT
@mellow solstice Has your question been resolved?
shut reef
I think its C
why
sudden raven
I have to find the next 3 numbers in this list but i really dont know where to start
1002 1330 1754 2253 2852 3588 4472
velvet mortar
,calc 1330-1002
wraith daggerBOT
Result:
328
,calc 1754-1330
wraith daggerBOT
Result:
424
328
424
499
599
736
884
velvet mortar
,calc 1330/1002
wraith daggerBOT
Result:
1.3273453093812
,calc 1754/1330
wraith daggerBOT
Result:
1.3187969924812
foggy mauve
BRO JUST USE A CALCULATOR
velvet mortar
Yeah it's neither arithmetic nor geometric series
foggy mauve
i think i found the first two digits
10, 13, 17, 22, 28, 35, 44
do u not see a pattern?
sudden raven
3 4 5 6 7 9
foggy mauve
first two digits are 53
did u understand how i did it.
give me some time for the next 2
sudden raven
i dont
foggy mauve
look at the first two digits of each number
velvet mortar
Oh nice
velvet mortar
Yeah that's the pattern
foggy mauve
:|
velvet mortar
Difference of the first two digits increase by 1 per term
sudden raven
3 4 5 6 7 9
where is the 8
velvet mortar
,calc (1330/1002) - (1754/1330)
wraith daggerBOT
Result:
0.0085483169000344
,calc (3588/2852)-(4472/3588)
wraith daggerBOT
Result:
0.011687704534829
left are the differences and right are the differences between the differences
it doesnt even grow faster everytime
cuz 75 is lower than 96
idk if i make sense
sudden raven
well its a website where you have to guess different numbers
and these are the numbers that are guessed correctly by others
and no one can find the pattern
foggy mauve
can u send me the link if u can i am interested
foggy mauve
yes
velvet mortar
,calc 1002+1330
wraith daggerBOT
Result:
2332
,calc 1330+1754
wraith daggerBOT
Result:
3084
,calc 1754+2253
wraith daggerBOT
Result:
4007
,calc 1738/1331
wraith daggerBOT
Result:
1.3057851239669
hm
dusty hazel
10^3 = 1000
11^3 = 1331
12^3 = 1728
13^3 = 2197
Even though this might not be getting anywhere. I just dropped another idea for you to try since that's what you were doing.
velvet mortar
,calc 2197/1738
wraith daggerBOT
Result:
1.2640966628308
thanks then
spark igloo
I am thinking that the numbers in series might be sum/difference of two squares/cubes
wraith daggerBOT
Result:
56
Lol.
spark igloo
,calc 1728+2197
wraith daggerBOT
Result:
3925
,calc 141414
wraith daggerBOT
Result:
2744
,calc 2852 - 2744
wraith daggerBOT
Result:
108
it probably has something to do with your cube theory
dusty hazel
I think so.
spark igloo
,calc 1754+2253
wraith daggerBOT
Result:
4007
it can't be a coincidence that they are this close
spark igloo
,calc 4007-3925
wraith daggerBOT
Result:
82
Sum of first 2 number is 10^3+11^3
sudden raven
well its a website where you have to guess different numbers
Assombalonga 64 1002
Yedlin 64 1330
VVD 74 1754
Ings 74 2253
Depay 74 2852
Berg 80 3588
Immobile 82 4472
these are the players and their ratings that were rewarded by guessing the first numbers correct
it can be possible you have to use those ratings
foggy mauve
this shit hard
dusty hazel
Sum of first 2 number is 10^3+11^3
It's not. It's +1 also.
spark igloo
It's not. It's +1 also.
Near that
velvet mortar
this shit hard
Harder shit than my constipation
spark igloo
And the sum of next 2 number is 12^3+13^3+1^2+3^2
spark igloo
,calc 14^3+15^3+1^2+3^2+5^2
wraith daggerBOT
Result:
6154
,calc 2852+3588
wraith daggerBOT
Result:
6440
Ahh close
dusty hazel
Scheisse
spark igloo
,calc 6440-6154
wraith daggerBOT
Result:
286
Hmm.
foggy mauve
waitiwiaiiqiefaizae
let me take a picture of my shit wait let me calculate
nvm
i found a really ocmplext pattern
which says that the two first two digits of the next number are 81.
spark igloo
Umm what
foggy mauve
let's put the first two digits
10 = 2x5
13 = 2x6,5
17= 2x8,5
...
if we continue this we will have 2x40,5 = 81
a bit hard for a pattern
irregular
spark igloo
Hm
half chasm
hi! I got sent here. Looks like you guys do not have all the info you need. The pattern is for a fifa simulation website. long story. anyways, it is confirmed that you need to use a number on the card to find the next number. the full cards are here:
foggy mauve
hi! I got sent here. Looks like you guys do not have all the info you need. The ...
@sudden raven 💀
spark igloo
hi! I got sent here. Looks like you guys do not have all the info you need. The ...
Good, coming from another id and giving solution
half chasm
Been working on it for a while already. I have received some more hints already but Im not sure how emotionally involved this server is so I will spoiler it:
||The pattern is: (previous number) - (A) + f(B) + f(previous number)||
lucid edge
B x z
foggy mauve
Been working on it for a while already. I have received some more hints already ...
what do a b and f stand for
half chasm
dont know. might be a constant, might be a number on the card. f is an unknown function, could be as easy as a multiplier
cedar kilnBOT
@sudden raven Has your question been resolved?
cedar kilnBOT
@sudden raven Has your question been resolved?
opal sierra
In this video the guy says x is approaching -6 but couldn't x be approaching anything?
cosmic steppe
Wdym x is approaching -6
tropic oxide
what video and what problem is being solved?
cosmic steppe
Did he mean as x approaches 5, the limit is -6?
tropic oxide
@opal sierra
cedar kilnBOT
@opal sierra Has your question been resolved?
tropic oxide
ah yes, the correct response to someone asking a clarifying question is to completely fucking ghost them
shut reef
I love it when they post a question and answer years later
solar dagger
quick question guys, why isn't 2^X in Big-O(X^2) by definition? i can't seem to understand the def x.x
solar dagger
Big-Oh definition in Wikipedia
dire geode
lots of examples here
https://mfleck.cs.illinois.edu/building-blocks/version-1.2/big-o.pdf
crimson sedge
cedar kilnBOT
versed fulcrum
You using degrees or radians?
crimson sedge
yo so um
idk what that is
im in year 9
i have my pc1's soon
so i thought i should revise
upbeat dune
Whats the issue tho ?
upbeat dune
The answer is indeed 60 degrees
cedar kilnBOT
crimson sedge
can anyone send me a good place to revise for my pc1's
year 9
higher
south london
cedar kilnBOT
Available help channel!
obtuse basin
I'm going through beginners calc and this problem is about instantaneous velocity at some t
obtuse basin
The thing is, I can't figure out what h is supposed to be
The book describes it as some small change in time
And to my understanding, lim h->0 means that as you get closer and closer to some arbitrary moment in time, it approaches the expression on the right side of the limit
balmy apex
that's the definition for the derivative btw
balmy apex
I'm going through beginners calc and this problem is about instantaneous velocit...
you basically check what tiny tiny change in y you get wrt x (y divided by x)
h is the x
the top stuff is the y
obtuse basin
wrt?
balmy apex
with respect to
obtuse basin
Ah
This is a bit confusing
So given position and a time for that position, you can find the velocity of how fast some point had to travel to get to that position in that time by inventing a variable h, and then you get your equation in terms of that h, then do some other random stuff and then substitute 0 in for h after simplfying?
It just seems so arbitrary
Oh, I see what it's doing
It's basically taking t and adding a number that is close but not equal to 0 that gets closer and closer to 0 and seeing what value you get for your function
So I could find it by doing (f(t+0.1) - f(t)) / ((t + 0.1) - t)
And doing that also for 0.01 and 0.001, and so on.
.close
tired glen
Hey all, I'm looking at how to get from one to another, can someone please help?
wraith daggerBOT
AirToastie
tired glen
Why is it not
i think it works out both sides right
maybe i should've use = instead of ->
tired glen
Why is it not
but still if i was wrong sorry can you just help me getting from one to the other?
tired glen
i did watch that but id didnt really help me that much
dire geode
Hey all, I'm looking at how to get from one to another, can someone please help?
Figure out your r from their general formula
reef field
How would I continue to solve 13 b ??
cedar kilnBOT
How would I continue to solve 13 b ??
obsidian coral
How would I continue to solve 13 b ??
You did an illegal math step
$\sqrt{y^2} + 1 \neq y + 1$
wraith daggerBOT
dldh06
obsidian coral
My suggestion, make y^2 + 1 not in the denominator
versed fulcrum
You did an illegal math step
It cannot?
obsidian coral
It cannot?
What?
versed fulcrum
$$\frac{1}{\sqrt{y^{2}}+1}\ne\frac{1}{y+1}$$
wraith daggerBOT
AirToastie
versed fulcrum
?
reef field
Would I have to multiply it to take it out?
obsidian coral
$$\frac{1}{\sqrt{y^{2}}+1}\ne\frac{1}{y+1}$$
I didn't want to write a fraction, so I just wrote only the denominator
obsidian coral
Would I have to multiply it to take it out?
You can cross multiply
versed fulcrum
I didn't want to write a fraction, so I just wrote only the denominator
huh? I'm confused
versed fulcrum
**AirToastie**
So does this make sense?
obsidian coral
**dldh06**
This is only the denominator
I only mentioned the denominator
I didn't write fraction
versed fulcrum
**AirToastie**
So this is incorrect?
reef field
Ohhh ok I got the answer
versed fulcrum
Ayyy nice
cedar kilnBOT
@reef field Has your question been resolved?
versed fulcrum
Can anyone help me understand the squeeze theorem?
cedar kilnBOT
Can anyone help me understand the squeeze theorem?
versed fulcrum
And maybe some examples?
crystal raptor
What exactly don't you understand
versed fulcrum
$$\lim _{x\to :0}\left(\frac{\sin \left(x\right)}{x}\right)$$
wraith daggerBOT
AirToastie
versed fulcrum
Why this equals 1
high coyote
$\sin x\leq x\leq \tan x$ in $(0, \pi/2)$
wraith daggerBOT
jnkena
high coyote
$1\leq\frac{x}{\sin x}\leq \cos x$
wraith daggerBOT
jnkena
versed fulcrum
**jnkena**
Why tan?
high coyote
$\lim_{x\to 0} \cos x = 1$
wraith daggerBOT
jnkena
versed fulcrum
Uhhhh
wraith daggerBOT
jnkena
high coyote
So 0 is greater or equal to sin(0)?
well sin(0)=0=tan(0)=sin(0)/cos(0)
But the inequality is true in (0,2π)
versed fulcrum
**jnkena**
Does that mean
$$\lim _{x\to 0}\left(\frac{1}{:cos\left(x\right)}\right)$$
wraith daggerBOT
AirToastie
versed fulcrum
Equal 1?
versed fulcrum
Oh wait that was a stupid question
high coyote
You have that sin(x)/x is bigger and less than functions which tend to zero as x → 0 so it must tend to 0 too
versed fulcrum
**jnkena**
wdym tan in 0, π/2