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

Find ` int _(-pi/4) ^(pi/4) (sin ^(4) x )/(sin ^(4) x + cos ^(4)x)dx `

A

` (pi)/(4)`

B

` (pi)/(2)`

C

` (3pi)/(2)`

D

` 2pi `

Verified by Experts

The correct Answer is:

A

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