int(1)/(sin x+sin 2x)dx...

`int(1)/(sin x+sin 2x)dx`

A

`(1)/(6) log (1-cos x ) +(1)/(2) log (1 + cos x)-2/3 log (1 +2 cos x)`

B

`6 log (1- cos x ) + 2log (1+ cos x)-(2)/(3)log (1 + 2 cos x )`

C

`6 log (1-cos x ) +(1)/(2) log (1+ cos x )+(2)/(3) log (1+2 cos x)`

D

None of these

Verified by Experts

The correct Answer is:

A

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