CBSE 2024 · Region 1 · Set 3 · Q1 · 1 mark
If $\displaystyle \mathrm{x}=\mathrm{at}, \mathrm{y}=\frac{\mathrm{a}}{\mathrm{t}}$, then $\displaystyle \frac{\mathrm{dy}}{\mathrm{dx}}$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle -\frac{1}{\mathrm{t}^{2}}$
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CBSE Class 12 Mathematics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.