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If 2ycos = xsin theta and 2 x sec theta ...

If `2ycos = xsin theta` and `2 x sec theta -y cosec theta = 3`, then the value of `x^2+ 4y^2` is
यदि `2ycos = xsin theta` and `2 x sec theta -y cosec theta = 3` हो, तो `x^2+ 4y^2` का मान क्या होगा?

A

1

B

2

C

4

D

8

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