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If tan(picos theta) = cot(pisin theta), ...

If `tan(picos theta) = cot(pisin theta)`, then `cos(theta - pi/4)` is :

A

`sqrt(2)`

B

`(1)/(sqrt(2))`

C

`-(1)/(2 sqrt(2))`

D

`(1)/(2 sqrt(2))`

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