If `x/a-y/btantheta = 1` and `x/atantheta+y/b = 1`, then the value of `x^2/a^2+y^2/b^2` is

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Q 1689878717.     If `x/a-y/btantheta = 1` and `x/atantheta+y/b = 1`, then the value of `x^2/a^2+y^2/b^2` is
CDS 2016
A

`2sec^2theta`

B

`sec^2theta`

C

`cos^2theta`

D

`2cos^2theta`

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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