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int (sin2x)/(sin^4x+cos^4x) dx...

`int (sin2x)/(sin^4x+cos^4x) dx`

A

`cot^(-1) ( tan^2 x)+C`

B

`tan^(-1) (tan^2 x ) +c`

C

`cot^(-1) ( cot^2 x )+c`

D

`tan^(-1) ( cot^2 x)+c`

Text Solution

Verified by Experts

The correct Answer is:
B
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