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यदि (x)/(a) cos theta + (y)/(b) sin thet...

यदि `(x)/(a) cos theta + (y)/(b) sin theta =1` तथा `(x)/(a) sin theta - (y)/(b) cos theta = 1`है , तो सिद्ध कीजिए कि `(x^(2))/(y^(2)) + (y^(2))/(b^(2)) = 2`

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