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Rajan@2021
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If (x/a sinθ – y/b cosθ) =1 and (x/a cosθ + y/b sinθ) =1, prove that (x²/a² + y²/b²) =2

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This is the basic and exam oriented question from trigonometric identities in which we have given that (x/a sinθ – y/b cosθ) =1

and also (x/a cosθ + y/b sinθ) =1

we have to show that (x²/a² + y²/b²) =2

RS Aggarwal, Class 10, chapter 13B, question no 3

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