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If x sin ^3 theta +y cos^3 theta = sin...

If ` x sin ^3 theta +y cos^3 theta = sin theta cos theta and x sin theta =y cos theta ` then `x^2 +y^2 ` is

A

`5a^(2)`

B

`4a^(2)`

C

`3a^(2)`

D

`a^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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