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Evaluate: int1/(cos3x-cosx)\ dx...

Evaluate: `int1/(cos3x-cosx)\ dx`

A

`(-1)/(2)(log|secx+tanx|-cosecx)+c`

B

`(-1)/(2)(log|secx+tanx|+cosecx)+c`

C

`(-1)/(4)(log|secx+tanx|-cosecx)+c`

D

`(-1)/(4)(log|secx+tanx|+cosecx)+c`

Text Solution

Verified by Experts

The correct Answer is:
C
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