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What is the integration x^3×cosx^3dxPlease give me the answer

What is the integration x^3×cosx^3dxPlease give me the answer

Grade:11

1 Answers

Vikas TU
14149 Points
5 years ago
write x^3×cosx^3dx as:
x*x^2*cosx^3dx
=> let x^2 = u
2xdx = du
I = u*cos(u^(3/2))
Apply now by – part easily then after substitute u in the end.

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