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cos [ tan^(-1){sin (cot^(-1)x)}]=...

`cos [ tan^(-1){sin (cot^(-1)x)}]`=

A

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

B

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

C

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

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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