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If tan((pi)/(2) sin theta )= cot((pi)/(...

If ` tan((pi)/(2) sin theta )= cot((pi)/(2) cos theta )`, then ` sin theta + cos theta ` is equal to

A

0

B

1

C

`-1`

D

1 or -1

Text Solution

Verified by Experts

The correct Answer is:
D
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