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cos^(-1)((3+5cosx)/(5+3cosx)) is equal t...

`cos^(-1)((3+5cosx)/(5+3cosx))` is equal to

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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