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int(1)/(4cos^(2)x+9 sin^(2)x)dx=...

`int(1)/(4cos^(2)x+9 sin^(2)x)dx=`

A

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

B

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

C

`(1)/(6)Tan^(-1)((3)/(5)tanx)+c`

D

none

Text Solution

Verified by Experts

The correct Answer is:
A
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