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int ( sin 2x)/(sin^4 x+ cos^4 x)dx...

`int ( sin 2x)/(sin^4 x+ cos^4 x)dx`

A

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

B

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

C

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

D

`-tan^(-1)(cos2x)+c`

Text Solution

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The correct Answer is:
A, B, C, D
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