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if (-pi)/(2) lt theta lt pi/2 andn ...

if ` (-pi)/(2) lt theta lt pi/2 andn theta ne _0 pi/4` , then value of ` cot ((pi)/(4) + theta)cot ((pi)/(4) - theta)` is

A

0

B

`-1`

C

`1`

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
C
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