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If tan(picostheta)=cot(pisintheta), the...

If `tan(picostheta)=cot(pisintheta),` then prove that `cos(theta-(pi)/(4))=pm(1)/(2sqrt(2))`

A

`pm 1//2`

B

`pm 1//sqrt(2)`

C

`pm 1//2 sqrt(2)`

D

2

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC EQUATIONS -EXERCISE 1
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