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cos(tan^(-1)x)=...

`cos(tan^(-1)x)=`

A

`sqrt(1+x^(2))`

B

`(1)/sqrt(1+x^(2))`

C

`1+x^(2)`

D

`(1)/(1+x^(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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