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int (dx)/(7+5 cos x) is equal to...

`int (dx)/(7+5 cos x)` is equal to

A

`1/sqrt6 "tan"^(-1) (1/sqrt6"tan" x/2)+c`

B

`1/sqrt3 "tan"^(-1) (1/sqrt3"tan" x/2)+c`

C

`1/4 "tan"^(-1) ("tan" x/2)+c`

D

`1/7 "tan"^(-1) ("tan" x/2)+c`

Text Solution

Verified by Experts

The correct Answer is:
A
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