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

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

A

`((x^2 + 2)/(x^2 + 3))^(1//2)`

B

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

C

`((x^2 + 3)/(x^2 + 4))^(1//2)`

D

x

Text Solution

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The correct Answer is:
B
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