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The expression tan.(pi/4+1/2cos^(-1)x)...

The expression
`tan.(pi/4+1/2cos^(-1)x)+tan(pi/4-1/2cos^(-1)x)` equals

A

`1/x`

B

x

C

`2/x`

D

2x

Text Solution

Verified by Experts

The correct Answer is:
C
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