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If x=a(sin theta+cos theta) and y=b(sin ...

If `x=a(sin theta+cos theta)` and `y=b(sin theta-cos theta)`, then the value of `x^2/a^2+y^2/b^2` is -
यदि `x=a(sin theta+cos theta)` और `y=b(sin theta-cos theta)`, तो `x^2/a^2+y^2/b^2` का मान क्या होगा ?

A

0

B

1

C

2

D

`-2`

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