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

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

A

`3/2 (tan^(-1))1/3((tan )x/2)`

B

2/3 log((3+(tan)x/2)/(3-(tan)x/2))

C

1/3 log((3-(tan)x/2)/(3+(tan)x/2))

D

1/3 log((3+(tan)x/2)/(3-(tan)x/2))

Text Solution

Verified by Experts

The correct Answer is:
C
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