CBSE 2026 · Region 2 · Set 1 · Q12 · 1 mark
The integrating factor of the differential equation $\displaystyle 2 x \frac{\mathrm{dy}}{\mathrm{dx}}-\mathrm{y}=3$ is
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle \frac{1}{\sqrt{x}}$
Differential EquationsMethods of Solving First Order, First Degree Differential EquationsApplymcqeasy
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CBSE Class 12 Mathematics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.