int(dx)/(5+4cosx)...

`int(dx)/(5+4cosx)`

A

`2/3tan^(-1)(1/3tanx)+c`

B

`1/3tan^(-1)(1/3tanx)+c`

C

`2/3tan^(-1)(1/3tan""x/2)+c`

D

`1/3tan^(-1)(1/3tan""x/2)+c`

Text Solution

Verified by Experts

The correct Answer is:

C

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