Evaluate: int1/(cos^6x+sin^6x)dx...

Evaluate: `int1/(cos^6x+sin^6x)dx`

A

(a) `tan^(-1)(tanx-secx)+c`

B

(b) `tan^(-1)(secx-tanx)+c`

C

(c) `sec^(-1)(tanx-cotx)+c`

D

(d) `tan^(-1)(tanx-cotx)+c`

Verified by Experts

The correct Answer is:

D

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