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Past papers by chapter · Chapter 9

Differential Equations in past papers.

Every board and sample-paper question on Differential Equations, newest paper first. Each one opens with its full-marks exam answer.

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CBSE Board Examination 2026

Board 2026 Q11Integrating factor of $R\frac{dx}{dy} + Px = Q$
Linear differential equations: integrating factor1 mark
Board 2026 Q12Order and degree of $\frac{d}{dx}(e^y) = 0$
Order and degree of a differential equation1 mark
Board 2026 Q29Solve $x^2\frac{dy}{dx} = x^2 + xy + y^2$ ⁠, or $xy\frac{dy}{dx} = (x + 2)(y + 2)$ with $y(1) = -1$
Homogeneous and variables-separable equations3 marks

CBSE Board Examination 2025

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CBSE Sample Paper 2026-27

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