Solution of equation cot^(-1) x + sin^(-...

Solution of equation `cot^(-1) x + sin^(-1) . 1/sqrt5 = pi/4 ` is

A

` x = 3`

B

` x = 1//sqrt5`

C

` x = 0`

D

None of these

Verified by Experts

The correct Answer is:

A

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