Evaluate each of the following integral: `int_(-pi//2)^(pi//2)sin^3x\ dx`

Explanation

Let `I=\int_{-\pi / 2}^{\pi / 2} \sin ^{3} x d x`


`f(x)=\sin ^{3} x `



`f(-x)=\sin ^{3}(-x)=-\sin ^{3} x`



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