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If (tan^(-1) x)^2 + (cot^(-1) x)^2 = (5p...

If `(tan^(-1) x)^2 + (cot^(-1) x)^2 = (5pi^2)/8` then `x` equals

A

-1

B

4

C

5

D

6

Text Solution

Verified by Experts

The correct Answer is:
A
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