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Considering only the principal values, if tan `("cot"^(-1) x)=sin ("cot"^(-1) 1/2)`, then x is :

A

`(1)/(sqrt(5))`

B

`(2)/(sqrt(5))`

C

`(3)/(sqrt(5))`

D

`(sqrt(5))/(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
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