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Mathematics 8 Online
OpenStudy (anonymous):

solve the initial value problem

OpenStudy (anonymous):

\[\frac{ d }{ dc }=x \left( 6+x ^{2} \right)^{6}, y(0)=0\]

OpenStudy (anonymous):

is it really d/dc?

OpenStudy (anonymous):

uh dy/dx sorry

OpenStudy (anonymous):

you want to put all the y terms on one side and all the x terms on the other

OpenStudy (anonymous):

dy = x(6+x^2)^6 dx

OpenStudy (anonymous):

what next?

OpenStudy (anonymous):

\[\int\limits_{}^{} dy = \int\limits_{}^{} x (6 + x^{2})^{6}dx\]

OpenStudy (anonymous):

i would integrate this by parts. letting u = x and dv = (6+x^2)^6 dx

OpenStudy (anonymous):

so this has to be integrated?

OpenStudy (anonymous):

yes. in order to find the solution y(x)

OpenStudy (anonymous):

\[y=\frac{ 1 }{ 14 }(6+x ^{2})^{7}\]

OpenStudy (anonymous):

yes :). + C C is obtained with [and is unique to] the initial condition given in the question y(0) = 0

OpenStudy (anonymous):

so is c 0 or does it have a value? -139968/7

OpenStudy (anonymous):

yes. and the solution would be the entire thing written out

OpenStudy (anonymous):

so its 0?

OpenStudy (anonymous):

my bad. read too fast. it's not 0. its the second thing

OpenStudy (anonymous):

+139968/7

OpenStudy (anonymous):

are u sure i have one answer that is just the equation i put earlier and then another that is the same but with a minus (-139968/7)

OpenStudy (anonymous):

at the end

OpenStudy (anonymous):

it is - 139968/7

OpenStudy (anonymous):

\[y=\frac{ 1 }{ 14 }(6+x ^{2})^{7}-\frac{ 139968 }{ 7}\]

OpenStudy (anonymous):

yes sir

OpenStudy (anonymous):

are you super sure??

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

ok thanks

OpenStudy (anonymous):

glad i could help

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