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If (-pi)/2<(theta)<(pi/2) and theta!=+-p...

If `(-pi)/2<(theta)<(pi/2)` and `theta!=+-pi/4`, then the value of `cot(pi/4+theta)cot(pi/4-theta)` is

A

1) 0

B

2) -1

C

3) 1

D

4) -2

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