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cos (tan^(-1)((3x)/2)) is :...

` cos (tan^(-1)((3x)/2)) ` is :

A

`(3x)/(sqrt(4+9x^(2)))`

B

`2/(sqrt(9x^(2)-4))`

C

`2/(sqrt(4-9x^(2)))`

D

`2/(sqrt(4+9x^(2)))`

Text Solution

Verified by Experts

The correct Answer is:
D
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