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UPSC CDS I 2025 Mathematics Paper

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Question : 29

Total: 100

Which of the following equations is/are possible? I. sin²θ=$\;{(x + y2^{undefined}.}/{4xy}$, where x, y are positive unequal real quantities.
II. sinθ+cosθ=x+$\;{1}/{x}$, where x is a positive real quantity.
Select the correct answer using the code given below :

I only
II only
Both I and II
Neither I nor II

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