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Question

Question: \(\int _ { 0 } ^ { \pi } \cos ^ { 3 } x d x =\)...

∫0πcos⁡3xdx=\int _ { 0 } ^ { \pi } \cos ^ { 3 } x d x =

A

−1- 1

B

0

C

1

D

π\pi

Answer

0

Explanation

Solution

,

{∵cos⁡3(π−x)=−cos⁡3x}\left\{ \because \cos ^ { 3 } ( \pi - x ) = - \cos ^ { 3 } x \right\}.