#help-0

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lilac orchid
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nope

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i am feeling helpless

solemn grove
# lilac orchid nope

that’s like asking what’s the price of a cup of tea if it costs twice as much as a barm

lilac orchid
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aur ssume their values

solemn grove
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you have given me a single piece of info

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that 5o = 2a

lilac orchid
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thanks for helping

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pray that teacher will give more infor for solving this ques

lone heartBOT
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@lilac orchid Has your question been resolved?

lone heartBOT
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alpine sable
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How did we get x = 0 and x - 4 = 0

lone heartBOT
knotty spire
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maybe this will help

alpine sable
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Okay, i will try.

thin gyro
knotty spire
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since you assume $x \neq 0$

ocean sealBOT
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Remavas

knotty spire
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Bottom line: DON'T divide by x

rugged sage
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I’m learning zero product property in school right now lol

lone heartBOT
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@alpine sable Has your question been resolved?

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native nebula
lone heartBOT
native nebula
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Could you please tell me why we have taken 1 and 2 here and not any other number?

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I mean why we did what we did?

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I can't understand this solution

drifting hull
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the idea is to get rid of the absolute values in the equation and as |y|=y for y>0 and |y|=-y for y<0, we consider for each |...|, whether the interior is positive or negative to simplify it

native nebula
drifting hull
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if x-1<0, then |x-1|=-(x-1)=1-x so we can replace |x-1| with 1-x and get rid of the first one

native nebula
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Thanks

#

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quiet bramble
#

Hello,
I recently came across Fibonacci Sequence and found it very interesting. However I am unable to find its applications in real life. I would like to know where it is used.
Thank you!

sweet finch
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In music: In a scale dominant note is the 5th note of major scale which is also the 8th note of all 13 notes that comprise octave. This is an instance of fibonacci numbers in key musical relationship

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also, the spirals of shells, seeds on a sunflower ,and even the curves of waves

silver adder
lone heartBOT
#

@quiet bramble Has your question been resolved?

lone heartBOT
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unique ingot
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what is the rule for this?

lone heartBOT
loud grove
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just multiply by sqrt7

placid zinc
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x²/x = x

loud grove
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on both sides

pale kestrel
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factorize 7

unique ingot
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oh ok thanks

pale kestrel
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as a product of sqrt

placid zinc
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Or x/x² = 1/x

unique ingot
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.close

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late parcel
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Is that considered 5 or 6 relative extremes

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On the interval -4 to 2

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That last one on the very right is confusing me

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Do you count that if it’s on the boundary or not?

lone heartBOT
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late parcel
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Is that considered 5 or 6 relative extremes

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On the interval -4 to 2

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That last one on the very right is confusing me

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Do you count that if it’s on the boundary or not?

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<@&286206848099549185>

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.close

lone heartBOT
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vale spruce
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Not sure how to solve this could I get some help?

primal berry
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Partial fractions, a nice thing.

Do you know where to start with this?

vale spruce
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Not to sure to be honest

torn forge
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how would you combine the two fractions?

primal berry
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Don't combine the fractions

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First step would be multiply the first fraction by B's denominator and then multiply the second by A's denominator

torn forge
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yes...

primal berry
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Technically I'm getting the fractions ready to be combined but...it's not needed

vale spruce
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Ok

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What’s next?

torn forge
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show us your progress if you can

primal berry
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Even if it's just text

vale spruce
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13x + 18/5x + 14 and 13x + 18/x-3

primal berry
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You should still have As and Bs in there

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A(x-3) + B(5x+4) = 13x+18

Ignoring the denominator

vale spruce
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Oh ok

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I got A = 13x +8-5Bx-4b/ x-3 and B = 13x+8-Ax+3A/5x+4

torn forge
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btw

torn forge
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you could choose A to be like 1 or 2 or 3... etc

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and just try to solve for B

torn forge
vale spruce
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ok

vale spruce
torn forge
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so

vale spruce
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from here

torn forge
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A(x-3) + B(5x+4) = 13x + 18

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lets take it from here

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cause its a bit easier

vale spruce
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ok

torn forge
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lets choose a value for A

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perhaps like 3?

vale spruce
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it can be any value?

torn forge
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any.

vale spruce
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ok

torn forge
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but youll need to solve for B later.

native nebula
torn forge
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actually

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ill just do this

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how many times does 5x fit into 13x?

vale spruce
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2

torn forge
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so B should be 2?

vale spruce
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ok

torn forge
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then how many times does x fit into 3x?

vale spruce
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3

torn forge
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so.

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A should be 3.

vale spruce
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so then should i input those numbers to find A?

torn forge
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nvm

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you just need to choose a number for A or B

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like if i choose A = 3

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then 3(x-3) + B(5x+4) = 13 + 18

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i would solve for B then.

vale spruce
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10x +27/5x + 4

torn forge
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uh

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yea actually i suck at this

vale spruce
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😂 so what next

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or not this

torn forge
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its basically guessing game rn

vale spruce
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i have the answer if that would help i just dont understand how my teacher got there

torn forge
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oh i have the answer

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now

vale spruce
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Ok

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So what shall I do

torn forge
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so

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B should be 3

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so that 3(5x + 4) = 15x + 12

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then just

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13x + 18 - 15x -12 = A(x-3)

vale spruce
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ok but how did you knwo b was 3

torn forge
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i just guessed

vale spruce
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😂

torn forge
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cause a equation is solvable only if theres only 1 variable

vale spruce
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so its basiclly trial and error

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till you find the right combination for 1

torn forge
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if theres 2 then you just gonna make assumptions for one of them

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yes

primal berry
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Ahhhhh!

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No need to guess

vale spruce
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how

primal berry
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I remember how you're meant to do this

vale spruce
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please

primal berry
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For A(x-3) + B(5x+4)

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Set one of the x values to make the bracket = 0

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So for A(x-3)

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x must be 3 for that to become 0

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Then you can solve for B

torn forge
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oh damn

primal berry
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And then you can find A after finding B

torn forge
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right...

primal berry
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Sorry for diappearing too

torn forge
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💀

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yea mb

vale spruce
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wait one second

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why should x be 3

torn forge
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so A(3-3) = A(0)

primal berry
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So then you only have to worry about B(5x+4) = 13x +18

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Means you only have 1 unknown

torn forge
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and some number multiplied by 0 is just 0

vale spruce
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oh

primal berry
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Better to have 1 unknown than 2

torn forge
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never thought of this 😭

vale spruce
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ok thank you

primal berry
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All good now?

vale spruce
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yeah

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preciate the help from both of you

torn forge
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i dont deserve it men.

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😭

vale spruce
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😂

primal berry
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Got there in the end!

vale spruce
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Yeah about that I just tried this strategy with another question it didn’t work can you help me one last time to figure out where I went wrong

primal berry
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For that type of question I believe you need to set x = 0 as one and then x = say... 1 and then solve it simultaniously

solar cliff
ocean sealBOT
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elemen

vale spruce
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let me try that out one second

primal berry
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Yeah, multiplying by (x+2)^2 makes it a lot easier

torn forge
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another one of these...

vale spruce
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yeah

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im getting a strange answer I dont think im doing it properly

primal berry
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If you do it the way that Elemen said. You will get

A(x+2) + B = 6x+7

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Set x=-2 to get rid of the A bracket and solve for B

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I was thinking for cubic partial fractions

vale spruce
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so b = -5

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?

torn forge
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yeas

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solve for A now

vale spruce
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ok thats what i did orignally but why do we forget the (x+2)^2

torn forge
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??

vale spruce
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the
orignal b denominator

torn forge
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oh

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we just multiplied by (x+2)^2

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so teh denominators are gone

vale spruce
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oh ok

torn forge
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only the numerator stays

vale spruce
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am i wrong or would a also equal -5

primal berry
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I got A = 1

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No no

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A should be 6

vale spruce
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wait what did you sub in to get a

primal berry
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Easiest number to sub in is 0

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So you'd end up with A(0+2) -5 = 6(0) + 7

vale spruce
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i thought it was -2

primal berry
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x was originally -2 in order for you to solve for B

vale spruce
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ok but how did you know to sub in 0 to find A

primal berry
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It's not really about knowing as such, it's just down to keeping A there. We know B already from subbing x = -2 into the equation

vale spruce
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oh i seee

primal berry
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Does that all make sense?

vale spruce
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yeah thank you so much

primal berry
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No problem!

lone heartBOT
#

@vale spruce Has your question been resolved?

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alpine wyvern
#

Shade the region of points that satisfy the inequalities x + y ≤ 7 and
x − y > −3.

alpine wyvern
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I know how to solve for y in these and graph for one of them but I don't really understand the question

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<@&286206848099549185>

tacit arch
tacit arch
# alpine wyvern I know how to solve for y in these and graph for one of them but I don't really ...

once you read ^, shade the region separately for each of your inequalities.
further examples if you're still confused
https://www.onlinemathlearning.com/graphing-inequalities.html

solemn grove
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none of them go through 0,0

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0,0 lies inside the region or outside the region they’re asking for

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do that for both and you’ll be able to find which side of the line they’re asking for

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@alpine wyvern

lone heartBOT
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@alpine wyvern Has your question been resolved?

alpine wyvern
#

oh im back

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sorry

solemn grove
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does it make sense

alpine wyvern
#

im reading and solving it right now

lone heartBOT
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@alpine wyvern Has your question been resolved?

lone heartBOT
#

@alpine wyvern Has your question been resolved?

lone heartBOT
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paper flame
#

is this correct?
80cm sqred = 8*10^-3 m sqred

lone heartBOT
#

@paper flame Has your question been resolved?

tacit arch
#

Use m^2 = (100cm)^2

lone heartBOT
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pale arch
#

how do i convert the general form quadratic equation x^2+4x+3 to standard form? i tried and got (x+2)^2+3 but my math program for homework says thats wrong

raven rover
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You need to complete the square with the 2 term x^2 + 4x

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One way to check your answer is to expand your answer and make sure you get the same thing as what you started with

pale arch
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okay! umm, how exactly do i do that?

raven rover
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You can probably look up complete the square, but it involves adding some number (and subtracting the same number to keep the expression unchanged) so you get a perfect square trinomial

pale arch
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i see! i attempted that by doing 4^2 over 2, and got 4 as the result, so i added and subtracted that along with adding the 3

raven rover
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It's (4/2)^2 = 2^2 = 4, but yes

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So:

x^2 + 4x + 3 = x^2 + 4x + 4 - 4 + 3

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Can you see a perfect square trinomial?

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@pale arch

pale arch
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ah sorry! umm, is the perfect square trinomial x^2 + 4x??

buoyant kayak
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that's not a perfect square or a trinomial

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possibly google what a perfect square trinomial is

pale arch
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shoot
yeah i should do that LOL

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is....4 the perfect square? and is x^2 + 4x + 4 the trinomial?

buoyant kayak
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well 4 is a perfect square and x^2+4x+4 is a trinomial lol

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that trinomial is the perfect square trinomial

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how can you rewrite it?

pale arch
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hm...

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um
yeesh uhh i am Not Sure

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WAIT

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uhhh (x+2x)(x+2x)+4?

lone heartBOT
#

@pale arch Has your question been resolved?

lone heartBOT
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@pale arch Has your question been resolved?

lone heartBOT
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crude rose
#

George loves his friends but recently his relationship has gotten shaky. In a certain conversation, his interest for his friends decreases at a rate I(t) = 1/x-x^2 measuring in interests per second where t >= 0. If George initially started with 100 interests how many will remain when t = 4 seconds? Will George be able to attend the fair?

brazen patrol
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did you attempt the prblem

crude rose
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idk how to itnegrate it

brazen patrol
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take the integral of l(t)

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and eval at 4

buoyant kayak
#

"idk how to integrate it" "take the integral"

#

For more free math help, visit www.TheVirtualMathematician.com

In this video we will learn how to integrate functions raised to some power, such as x^4. The Power Rule for integration is one of the most basic integration techniques that we will learn in calculus, and is likely the first integration technique you will come across in your studies...

▶ Play video
brazen patrol
#

an attempt is always better than saying "idk"

buoyant kayak
#

i do not care

brazen patrol
#

because we can see what you don't know

abstract fractal
brazen patrol
#

then why'd you respond lol

buoyant kayak
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cause i was giving the person who asked the question a link that will help them

brazen patrol
#

you added nothing besides a helpful video

buoyant kayak
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is everything you say redundant

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or should i keep reading

brazen patrol
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I'm fine with you providing the video. It doesn't change the fact that saying "idk" doesn't help anyone. Since you don't care, we'll leave it at that

abstract fractal
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What are they supposed to do? Manifest the knowledge? If they don't know, they don't know my guy. Assuming they actually don't know, of course

brazen patrol
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i was just saying that you don't get a question like that when you're first introduced to integration though

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you normally play around with rules(atleast I assumed )

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and basic functions like x^2 etc

abstract fractal
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There's a lot of integration rules. It's easy to forget, if you're not great at it, like many students are

brazen patrol
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this isn't a test though

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it's like sending an email or whatever with the "No hello" thing

abstract fractal
#

Still, we should give the benefit of the doubt. If the other person says they don't know how to integrate the function, we should take their word for it. We could then either help them remember, or send them a video, or something.

lone heartBOT
#

@crude rose Has your question been resolved?

lone heartBOT
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junior condor
lone heartBOT
junior condor
#

how would I do this exactly? Any steps I should follow? The lecture notes seem vague (no examples) compared to this problem on the hw

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It looks like I should verify the definition of jacobian (injectivity + rank 2) but idk how i would do it here

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I tried googling stuff but everything is either too basic (coordinate plane) or too hard (idk what a manifold is)

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@crisp iron i need advice on this problem

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How do I find this surface S that is mentioned in the problem?

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@crisp iron please help

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@mental coyote

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<@&286206848099549185>

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<@&286206848099549185>

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@mental coyote

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<@&286206848099549185>

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@subtle mantle @fringe yoke thanks mods for helping me

solar cliff
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im not really a helper but i can try lol

junior condor
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Each point of the surface S has to be 'covered' by a point in Phi, the coordinate chart

glass lichen
fringe yoke
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What’s a coordinate chart

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Tell me that and I solve this

jovial breach
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Ain't this differential geometry?

junior condor
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I have not had it formally defined. I just need to show that all points of a surface S has a corresponding point in the coordinate chart Phi

fringe yoke
#

And what is surface S?

junior condor
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Well I think that's the problem

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finding a surface S that has Phi as its coordinate chart

junior condor
#

.close

lone heartBOT
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calm kiln
#

Hi

lone heartBOT
calm kiln
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@magic sleet

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Yea boxed answer is my final answer

magic sleet
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you want me to check it right

calm kiln
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I didn’t box for 2 and 3 by accident

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Yea

magic sleet
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ok sec

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@calm kiln answer 1-3 is correct but for the first box in 1) is wrong

lone heartBOT
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@calm kiln Has your question been resolved?

magic sleet
#

576 @calm kiln

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5.76

calm kiln
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??

#

For what quadrant

calm kiln
magic sleet
#

the 3rd box

#

u answered it wrong

#

you answered it 5.76

#

@calm kiln

lone heartBOT
#

@calm kiln Has your question been resolved?

calm kiln
#

I wrote 5.176

magic sleet
#

OH

#

i thought u wrote it 5.76

#

then ur correct

calm kiln
#

Ok

calm kiln
magic sleet
#

yeah

calm kiln
#

ok tysm

#

.close

lone heartBOT
#
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pale terrace
#

if you're differentiating a function with respect to y does it become dx/dy?

pale terrace
#

in other words, is that the way to find y'?

glass lichen
#

y' is dy/dx

pale terrace
#

thank you

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rough yoke
lone heartBOT
rough yoke
#

how would I approach a taylor series like this

#

thus far I have written out all the derivatives for the function

#

but I'm not sure how I would proceed because cos(pi/4) is like rougly 0.70

#

so it alternates every 2 signs

#

so how would I represent that in series form

placid zinc
#

You don't want to put 0.707, you'll want to put √2 / 2

rough yoke
#

ooh i see

#

let me try to represent it but im not too sure about how to make it alternate signs every 2 terms

#

instead of one

placid zinc
#

Actually it looks like you've got it

#

You just want the sign to alternate after every two, huh?

rough yoke
#

yeah

#

so heres where im at

#

I figure this should take care of the rest

#

but i don't know what to raise -1 to the power of

lone heartBOT
#

@rough yoke Has your question been resolved?

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@rough yoke Has your question been resolved?

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@rough yoke Has your question been resolved?

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@rough yoke Has your question been resolved?

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scenic vault
#

hello need help here

lone heartBOT
echo socket
#

That's a separable differential equation

scenic vault
echo socket
#

Consider dividing both sides by y-5

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#

@scenic vault Has your question been resolved?

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@scenic vault Has your question been resolved?

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lone heartBOT
zealous swift
#

Hey guys I need help with questions 4 a)

lone heartBOT
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zealous swift
#

This is tutor homework. No exams or assignment for me to cheat on haha. My tutor has provided his answers but I still don’t get the question. I tried to use the general form ( I think that is incorrect) and tried to understand binomial expansions (I still don’t understand). I don’t really get the whole concept.

fringe token
#

I assume you know how to expand (a+b)^9 which will have the general form (9C0)a^9 +(9C1)a^8(b)…

zealous swift
#

Sorry could you write that down on paper so I cna see the formatting?

#

Thank you though

#

For your swift response:)

#

I appreciate it

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inner hinge
#

Is it possible to find an unknown coordinate of a trapezium vertex?

inner hinge
#

A regular trapezium

#

.close

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tardy spire
#

can someone explain to me how to solve it <@&286206848099549185>

alpine sable
#

please wait 15 min after posting question before pinging helpers

#

but i can help @tardy spire

tardy spire
alpine sable
fringe token
#

Which circle theorems do you think would be useful to use

tardy spire
#

hmm

gray isle
#

how are you getting 60 for x

tardy spire
#

100 is equal to 40 + x

#

am i right?😬

gray isle
#

is that a guess?

fringe token
#

I mean x does equal 60 but if you already worked that out then the rest shouldn’t be too hard

gray isle
#

I mean it is,but it depends if you're able to justify that properly

gray isle
#

and technically you don't need to find x or y to determine x+y

fringe token
tardy spire
#

i didnt see it

#

so the answer is C right

fringe token
#

Yes

tardy spire
#

umm can i ask another question?

#

well i know that angle LKN = KLN

gray isle
#

you get a lot more info than that

tardy spire
#

hmm

tardy spire
gray isle
#

do you know what an equilateral triangle is?

tardy spire
#

eh lolol im so dumb

#

each angle is 60

#

so it is C

#

sorry mb

#

how bout this

tardy spire
tardy spire
icy crane
#

what have you tried

tardy spire
icy crane
#

correct

#

so how much bleach is added to make it 50-50

tardy spire
#

30% more?

icy crane
#

nah. doesn't work like that

#

you know, if the solution is 50%, there's equal parts of water and bleach right?

tardy spire
#

yeah

#

so the bleach will become 20 L?

#

and same as water

icy crane
#

wait wait. we are at the step where we add bleach to make the solution from 20%-80% to 50%-50%

#

and you said that the 20/80 solution has 8 Ls of bleach, and 32 Ls of water

#

so, how much bleach do we have to add to make the quantity equal to the 32Ls of water already present in the solution?

tardy spire
#

24Ls?

icy crane
#

correct

#

so you add all that bleach. and now you have a mix of 32 L bleach and 32 L water

tardy spire
#

okay...

icy crane
#

now you have to add more water. let's call the quantity you have to add X

#

so, in the end. the mixture will have 32 Ls of bleach. and 32 + X L's of water

#

and the ratio of bleach to the total quantity will be 20%, or 0.2

#

try to turn that into an equation

tardy spire
#

ok let me try

#

Is the answer is 96?

#

0.2=0.8
32=32 + x,
x=96

icy crane
#

hm no that's not correct

tardy spire
#

ehhh

icy crane
#

o no wait

#

you're right

#

i didn't understand the equation you wrote. but the answer is correct.

tardy spire
#

thank you so muchh

#

u r totally a genius

#

😉 .

icy crane
#

the simplest way to write the equation is 32/(32+32+x) = 0.2

tardy spire
icy crane
#

it's how the percentage of the bleach is defined

#

quantity of bleach / total quantity

tardy spire
icy crane
#

yes. this is what is meant when it says "20% bleach solution"

tardy spire
#

Ooh i see

#

now i get it

#

thanks @icy crane

icy crane
#

np 👍

tardy spire
#

.close

lone heartBOT
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inner bolt
#

which table looks correct for this question

inner bolt
#

im not too sure which one would be correct because of the 50% chance of surviving

lone heartBOT
#

@inner bolt Has your question been resolved?

inner bolt
#

in the first one i divided all the offspring of aa by 2 but in the second pic i only divided the aa offsprings by 2

#

not sure which one is right

inner bolt
#

<@&286206848099549185>

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#

@inner bolt Has your question been resolved?

slim shell
#

is this from a part of heredity?

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violet iron
#

Can anyone please tell me how I would rewrite the first one

violet iron
#

I just need to know what exactly they’re asking for.

fringe token
#

Probably asking you to convert to index form

violet iron
#

What is index form?

#

D/dx?

#

😭

silver adder
#

Rewrite into something easy to differentiate

#

Differentiate that

#

Simplify the result

#

e.g 25. can be rewritten as $\frac{5}{2}x^{-2}$

ocean sealBOT
violet iron
#

Ohh okay okay

#

Thank you 🙏

#

.close

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#
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warped wave
#

Does anyone know about the Perrin numbers

warped wave
#

P(n)=p(n-2)+p(n-3)

oak perch
#

I don’t know it but I can only know that to calculate it’s expression. we need to consider the polynomial x^3-x-1=0, if it has three distinct roots r_1, r_2 and r_3, then p(n)=Σc_k(r_k)^n. Then we need to know three terms of P(n) to obtain a system of linear equations of c_1,c_2,c_3 to solve them
If it has a three-multiple root r, then p(n)=(c_0+c_1(n)+c_2(n^2))(r^n)
If it has a two-multiple root r and a single root s then it equals (c_0+c_1(n)(r^n)+c_2(s^n)

#

(The characteristics polynomial has a single root r,then r^n is an element of the basis. If it has a k-multiple root r, then r^n, nr^n, n^2r^n,…,n^(k-1)r^n is part of the basis)

pulsar aspen
oak perch
#

( I assume he knows that all sequences P(n) such that p(n)=p(n-2)+p(n-3) forms a linear space, and Jordan form or matrix those kind of things)

#

?

#

I thought he wanted to calculate the expression of p(n), he didn’t say anything about prime number

lone heartBOT
#

@warped wave Has your question been resolved?

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alpine sable
lone heartBOT
alpine sable
#

Can i use simultaneous for this

#

since C E B points are collinear

#

so im thinking to use gradient to find the first equation for x and y

#

and then i use the shoelace method to find the area

#

then sub in the first equation then do the factorisation

#

overall the step is overwhelmingly long

#

stilll i couldn't get the ans

#

i wonder if my method is correct

#

or could there be any careless mistake i checked it thrice but still i couldn't get the ans

#

the ans sheet shows another method (ratio method) which I haven't learnt b4

#

so this question really got me,,,

#

Heres my working btw

#

here's the ans sheet :sigh:

lone heartBOT
#

@alpine sable Has your question been resolved?

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#

@alpine sable Has your question been resolved?

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balmy warren
#

Hi I've done the first part of the question. I'm wondering what's the method for going about doing the second part

alpine sable
#

Lookz like a magnifier

#

Right comes against left, then redirect it

#

Let and right creates opposition

#

Redirect the outcome to make use of it

glass lichen
crisp night
#

I would just make function of distance from origin by t, and find its max

alpine sable
#

C_2 = 2

#

It's two sides

#

Make it 1

#

And redirect

balmy warren
#

yeah so I started with x^2 + y^2 = r^2

alpine sable
#

Yeah

#

Rewire it

balmy warren
#

this is purely a mathematical problem. nothing to do with lenses

#

or magnifiers

alpine sable
#

Mhm

balmy warren
#

I'm confused as to what you are saying

alpine sable
#

Turn 2 to 1

#

Find the method to return 1 i mean

balmy warren
#

which 2

alpine sable
#

O and C1

balmy warren
#

return 1 from what exactly?

alpine sable
#

you got x all around, you have to makr it pick one side instead 1

#

From the combination you got of 4 sides

balmy warren
#

I have the cartesian equation for c1

alpine sable
#

What is it?

balmy warren
alpine sable
#

Write it down

balmy warren
#

top part

alpine sable
#

)(

balmy warren
#

second part was the start of my method

#

but it didn't go anywhere

alpine sable
#

Hmmm

#

You're still left with 2, although it's really 1, need to make it return something elsr

#

x, that's what you got right now

#

Which is 5

#

Hmmm

balmy warren
#

sorry, but I'm really confused at to where this 2 is coming from

alpine sable
#

Essential x is made of 2

#

It returns 5

balmy warren
#

bro your using some way too fancy words for me

#

essential x?

alpine sable
#

Big bang xd, two things collided and created a universe

#

They returned one

glass lichen
#

@alpine sable don't troll.

alpine sable
#

See

#

So 1 + 1 = 2

alpine sable
#

I'm trying to explain using my method, i usually talk like that

glass lichen
#

You're speaking nonsense tbh

alpine sable
#

So 2 things add up to create 1

#

1 + 1 = 2, 2 = 1 + 1.
Hmm

balmy warren
#

Sorry @alpine sable, are you actually going to help? otherwise I'll wait for someone else

glass lichen
#

@alpine sable shut up

alpine sable
#

🙊

glass lichen
#

You're not helping in the slightest

#

Piss off

alpine sable
#

It's pretty confusing

glass lichen
#

@balmy warren have you tried solving for the points of intersection?

crisp night
glass lichen
#

@alpine sable shut it

crisp night
balmy warren
#

so I got r^2 in terms of x

#

but not sure what to do from there

glass lichen
#

yeah, you get $r^2-x^2=\frac{9}{4}x^2(4-x^2)$

ocean sealBOT
glass lichen
#

which is $\frac{9}{4}x^4-10x^2+r^2=0$

ocean sealBOT
balmy warren
#

yes!

glass lichen
#

this is a quadratic in x^2

#

and you can argue why the discriminant must be 0

balmy warren
#

so I used the discriminant

#

b^2-4ac = 0

glass lichen
#

yes

#

which is $100-9r^2=0$

ocean sealBOT
balmy warren
#

oh wait

#

I know where I've gone wrong

#

mixed up my addition

#

ended up with $100+9r^2$

ocean sealBOT
#

IntelligentCake

balmy warren
#

which is gave me complex answers

#

thanks for the help!

#

really appreciate it

glass lichen
#

but of course include why you can only have $\Delta=0$

ocean sealBOT
balmy warren
#

is it because how functions work.

glass lichen
#

no

balmy warren
#

oh

glass lichen
#

if $\Delta <0$, then you wont have any intersections

ocean sealBOT
balmy warren
#

oh wait, because it touches the circle right

glass lichen
#

and if $\Delta >0$, you get 8 solutions

ocean sealBOT
balmy warren
#

yeah gotcha

#

cool, so do I just do a .close to say that this is solved?

#

.close

lone heartBOT
#
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lone heartBOT
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vale ridge
#

.open

lone heartBOT
vale ridge
#

pls help

#

meh

dense sleet
#

Oh in question you are basically splitting the second term to factors

vale ridge
#

ok

#

tjx

#

i remember the other steps

#

.close

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alpine sable
lone heartBOT
#

@alpine sable Has your question been resolved?

alpine sable
#

Mind explaining in simpler manner?

wanton nova
#

🤣 🤣 🤣

alpine sable
#

I wasn't here

#

So essentiall we got 2, that is collecting two 1's

#

Confusing

alpine sable
#

So ∆ = 1

#

∆ also equals = 2

#

How can I say find the opposite of it? What's the opposite of ∆?

wanton nova
#

-delta

#

🤣

alpine sable
wanton nova
#

or that

alpine sable
#

Hm

wanton nova
#

whats that

#

omega?

alpine sable
#

Erm

#

So 3 oposites

#

I guess

#

+-∆ 8
-∆8
+∆8

#

Does this work?

#

+-∆ 8 neutrial
-∆8 minus
+∆8 plus

wanton nova
#

idk this is too advanced for me. also how u wite delta like that

alpine sable
#

Where's delat in between these?

#

Well

#

You combine and boom you got neutrial force

#

+- is collecting + and -

#

Like 1+1 Is collection of 2
1-1 is also collection of 2 really yet it's opposite of the first one

#

So

+-

#

Alpha delta omega

#

What ya think

#

I think i got it right

#

So say i want to appose all

Alpha omega and delta, the opposite would be a replica of it, that is alpha since it would be 2 collections apposing each other

#

Essentially how magnets work

#

Both magnets are alpha

#

∆ vs ∆ push each other away

#

That's why you can throw a magnet on top of another if you got the right side and they wil push each other for ever

#

Interesting

#

To pull, as in make the magnets work you use + and -

#

Because + pushes
And - pulls

#

In reality they really both pull each other, they work together if you we're not to use both against another double of it self

#

2 forces

 )( =  ∆ + ∆     (push)
 | = ∆    (pull)

#

Essential you could also say there is a third one that does "nothing" even though it's technically doing something, it's when the magnet it self is not really facing another

#

∆ + ∆ + ∆ = π

#

3 neutrials equal pie because it's not complete

#

You can also do π + π = )(

(oppositional again)

#

Because both uncompleted, they try to complete but both uncompleted

#

Not hard, interesting

#

Just needed some thinking really

#

Thanks for the assistance
.close

#

. close

#

.close

lone heartBOT
#
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mint plinth
#

i collect apples, i eat 1/3, i give my friend 3/5 and nowi have 4 left, how many did i collect att the start

lone heartBOT
#

Please don't occupy multiple help channels.

dense sleet
#

Write an equation

dense sleet
mint plinth
#

idk

#

im so confused

solar ermine
#

quixxzy

#

so u have to

#

find a common denominator

#

between 3 and 5

mint plinth
#

15

solar ermine
#

ok

#

so how many times did u multiply 3 to 15

#

and 5 to 15

mint plinth
#

it will be

#

5/15

#

and

#

9/15

solar ermine
#

3x5=15

#

ok

#

yea

#

so add them

mint plinth
#

14/15

#

and now?

solar ermine
#

now u have 4

#

ok

#

wait

#

so

mint plinth
#

yes

wanton nova
#

,w x-1/3-3/5=4

solar ermine
wanton nova
#

why

solar ermine
#

how is it 74

#

what

wanton nova
#

bro

#

its a calculator

mint plinth
#

the answer is 15

#

in my book

solar ermine
#

apples?

mint plinth
#

thats what the answer says in the answer check

wanton nova
#

no

solar ermine
#

thats weird

#

lol

wanton nova
#

it isnt 15

#

i checked

mint plinth
#

the x is 15

solar ermine
#

it should be like

mint plinth
#

it says

wanton nova
#

no

mint plinth
#

basicly

wanton nova
solar ermine
#

6

wanton nova
#

guys

#

please

mint plinth
wanton nova
#

listen

#

listen

mint plinth
#

k

wanton nova
#

you have x

#

then -1/3

#

then -3/5

mint plinth
#

ye

wanton nova
#

=4

mint plinth
#

yes

wanton nova
#

set the equation

#

,w x-1/3-3/5=4

oak perch
#

He got 15 Because “I gave my friend 3/5” means I gave my friend 3/5 of apples remaining (apples I ate aren’t counted)

wanton nova
#

oh

#

thats a different story

#

yeah

mint plinth
#

huh?

wanton nova
solar ermine
#

lol

mint plinth
#

sorry

wanton nova
#

np

mint plinth
#

so how do i do iẗ

solar ermine
#

i need help w this

mint plinth
#

?

wanton nova
#

nothing

mint plinth
#

so how do i do it

#

how do i get the answer

oak perch
solar ermine
#

?

#

oh wait

#

nvm lol

mint plinth
#

bro i need help how do i get 15

wanton nova
#

idk

#

ohhh

#

wait

#

F

#

i hate this

mint plinth
#

this is what i mean bro

#

gtg sleep

#

ty for trying'

wanton nova
#

yw

lone heartBOT
#

@mint plinth Has your question been resolved?

lone heartBOT
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dense sleet
#

The surface of the triangle ABC is 32 cm2. On pages AB and BC, points M and N such that |AM| : |MB| = |BN| : |NC| = 3 : 1. Point G is the intersection of the DIRECTIONS AN and CM. Determine the ratio of the surfaces of the AGC and MBNG characters.

lone heartBOT
#

@dense sleet Has your question been resolved?

lone heartBOT
#

@dense sleet Has your question been resolved?

dense sleet
#

<@&286206848099549185>

lone heartBOT
#

@dense sleet Has your question been resolved?

lone heartBOT
#

@dense sleet Has your question been resolved?

lone heartBOT
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red kestrel
#

Why suppose n>=2 and n-1 ? Why was not n=k then n=k+1 ? Can someone explain this please ?

ebon condor
#

So you need to understand what you're proving

#

K is your iteration variable

#

you dont really want to increase that

#

you're proving n for any number

red kestrel
#

I see thanks

#

.close

lone heartBOT
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alpine sable
#

What numeric values for B would make it equal -> -5^b and (-5)^b

ebon condor
#

You should probably use your exponent rules

#

so here's a hint

alpine sable
#

would it be 1?

ebon condor
#

$(ab)^n = a^nb^n$

ocean sealBOT
#

KurtDee

alpine sable
#

yeah but there is only one term

#

5

ebon condor
#

-5 = -1*5

alpine sable
#

I can only think of 1?

#

I still don't know

ebon condor
#

I mean that's the point of math, right?

#

to work problems out

alpine sable
#

so how do I do it

ebon condor
#

where are you stuck

alpine sable
#

what do I do with the exponent rule

ebon condor
#

I mean like what are you really trying to do here

#

solve for b

#

so how do you want to do that

alpine sable
#

-5^b and (-5)^b

#

what would b be to make them equal is the question

#

what would I do first

#

?

ebon condor
#

I mean ideally you should equate the exponent base

#

you're dealing with two different bases, 5 and -5

swift shore
alpine sable
#

(-1^b 5^b)

swift shore
#

Right, and what is (-1)^b

alpine sable
#

(-1^b 1^b)

swift shore
#

Well yeah, but that doesn't help us any more

#

(-1)^b depends on what b is. If b is even, it'll equal 1, and if it's odd it equals -1. Do you see?

#

Anyway we might be getting off track

alpine sable
#

so b needs to be odd

#

numbers

swift shore
#

So your equation now looks like $$-5^b = (-1)^b \cdot 5^b.$$

ocean sealBOT
swift shore
#

You can see there's a 5^b term on both sides, and if you divide both sides by 5^b you get...

alpine sable
#

so yeah b needs to be odd numbers I'm guessing

swift shore
#

Don't make that decision prematurely, I was just pointing it out. We don't know yet

alpine sable
#

oh ok

swift shore
alpine sable
#

-1^b

swift shore
#

It should be an equation

swift shore
alpine sable
#

-1^b = (-1)^b

swift shore
#

You should get -1 = (-1)^b

#

And from our discussion before, this is true whenever b is odd. Therefore the possible solutions for b are all odd numbers

lone heartBOT
#

@alpine sable Has your question been resolved?

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lone igloo
#

what are the supremum and infimum

lone heartBOT
#
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lone igloo
#

I know that for n -> infinite the series converges to -1

#

for n = 1 it's -2

#

so are the infimum -2 and the supremum -1 ?

lone heartBOT
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lone igloo
#

I know that for n -> infinite the sequence converges to -1
for n = 1 it's -2
so are the infimum -2 and the supremum -1 ?

cerulean vine
#

Help

lone igloo
#

thank you

#

.close

lone heartBOT
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dark ridge
#

can someone help meeeeeeeeeeeee

lone heartBOT
dark ridge
#

ik ik its easy but uh i just learned this lol

fathom mantle
#

Then let us know when you’re stuck!

hybrid furnace
#

someone responded to your one in the other channel

languid bolt
#

ye i did

lone heartBOT
#

@dark ridge Has your question been resolved?

tacit arch
#

.close

lone heartBOT
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uneven thicket
#

Hello! I got this one question, how does D(Dy-r2y)-r1(Dy-r2y) turn into the bottom line?

tacit arch
#

and the rest of your variables

uneven thicket
#

alright, give me one second I'll send the whole thing

#

so

#

-b = r1 + r2 and c = r1r2

tacit arch
#

they just factored

#

multiply out the bottom line to see

uneven thicket
#

Yes, just trying to find out how the factoring went

tacit arch
#

do it in 2 steps

#

first factor y out

uneven thicket
#

oh I think I see it now

#

oh I do see it now, thanks that was so simple lol

#

.close

lone heartBOT
#
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worn karma
#

How would I derive an explicit expression for this ?

lone heartBOT
#

@worn karma Has your question been resolved?

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@worn karma Has your question been resolved?