If X sin^(3)theta+Ycos^(3)theta=sin thet...

If `X sin^(3)theta+Ycos^(3)theta=sin theta cos theta` and `X sin theta=Y cos theta` then _____

A

`X^(3)+Y^(3)=1`

B

`X^(2)-Y^(2)=1`

C

`X^(2)+Y^(2)=1`

D

`X^(4)+Y^(4)=1`

Verified by Experts

The correct Answer is:

C

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