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Mathematics 8 Online
OpenStudy (tmagloire1):

PLEASE HELP AP CALCULUS AB http://prntscr.com/bd35z9

OpenStudy (tmagloire1):

@ganeshie8 @Preetha @Mehek14

OpenStudy (tmagloire1):

@KendrickLamar2014 @jigglypuff314 @nincompoop

ganeshie8 (ganeshie8):

Hi

OpenStudy (tmagloire1):

HI!

ganeshie8 (ganeshie8):

You could literally cross multiply here

OpenStudy (tmagloire1):

dx(x^2) = dy(y^2)?

OpenStudy (tmagloire1):

dx(x^2) = dy(0^2) dx(x^2) = dy

ganeshie8 (ganeshie8):

Yes Next integrate both sides

OpenStudy (photon336):

yeah then integrate both sides after you separate dx and dy then plug in the initial condition of y(0) to find C.

OpenStudy (tmagloire1):

Wait integrate my first response of the second one

ganeshie8 (ganeshie8):

No Integral of y^2 with respect to y is not 0

OpenStudy (tmagloire1):

that side would be y^3

ganeshie8 (ganeshie8):

y^3/3

OpenStudy (tmagloire1):

oh ok, but that would just be one side right? do we have to do the same for x?

ganeshie8 (ganeshie8):

Yes

OpenStudy (tmagloire1):

it would be x^3/3

ganeshie8 (ganeshie8):

Do yoy get x^3/3 = y^3/3 + C

OpenStudy (tmagloire1):

yup so then how do we put y(0)=2? x^3/3 = y^3/3 + C

ganeshie8 (ganeshie8):

Plugin x=0 y=2 and solve C

OpenStudy (tmagloire1):

0^3/3 = 2^3/3 + C 0 = 8/3 + C C= -8/3

ganeshie8 (ganeshie8):

Yes

OpenStudy (tmagloire1):

Thank you!

ganeshie8 (ganeshie8):

Yw

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