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int(-pi//2)^(pi//2)(sin^(4)x)/(sin^(4)x ...

`int_(-pi//2)^(pi//2)(sin^(4)x)/(sin^(4)x + cos^(4)x)dx=`

A

2

B

`(pi)/(4)`

C

`-2`

D

`(pi)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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