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Evaluate: int(cos2x-cos2alpha)/(cosx-cos...

Evaluate: `int(cos2x-cos2alpha)/(cosx-cosalpha)\ dx`

A

`2(cos x-cos a)+c`

B

`2(sinx-x.cosa)+c`

C

`2(cos x+x.sina)+c`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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