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If: cos^(-1) (sin theta) = sin^(-1) (cos...

If: `cos^(-1) (sin theta) = sin^(-1) (cos theta)`, then: `theta`=

A

` pi/4`

B

`pi/2`

C

`npi +- pi/3, npi +- pi/6`

D

none of these

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The correct Answer is:
D
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