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int(cos7x-cos8x)/(1+2cos 5x)dx=...

`int(cos7x-cos8x)/(1+2cos 5x)dx=`

A

`(-sin2x)/(2)-(sin3x)/(3)+c`

B

`(sin2x)/(2)+(sin3x)/(3)+c`

C

`(sin2x)/(2)-(sin3x)/(3)+c`

D

`(sin2x)/(3)-(sin3x)/(2)+c`

Text Solution

Verified by Experts

The correct Answer is:
C
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