Teaching AP DSC School Assistant 2025 Mock Test Series Mathematics Differential Calculus Evaluation of derivatives
यदि \(x=a\left(t+\frac{1}{t}\right)\) और \(y=a\left(t-\frac{1}{t}\right)\), तो \(\frac{d x}{d y}\) है:
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\(\frac{x}{y}\)
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\(\frac{y}{x}\)
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\(\frac{1}{x}\)
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