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

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

A

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

B

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

C

`1+x^(2)`

D

इनमें से कोई नहीं

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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