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int(dx)/(3+4cos2x)=...

`int(dx)/(3+4cos2x)=`

A

`(1)/(2sqrt(7))log|(sqrt(7)+tanx)/(sqrt(7)-tanx)|+c`

B

`(1)/(2sqrt(7))log|(sqrt(7)-tanx)/(sqrt(7)+tanx)|+c`

C

`(1)/(4sqrt(7))log|(sqrt(7)+tanx)/(sqrt(7)-tanx)|+c`

D

`(1)/(4sqrt(7))log|(sqrt(7)-tanx)/(sqrt(7)+tanx)|+c`

Text Solution

Verified by Experts

The correct Answer is:
A
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