Solve: $2e^{x+2y}\cdot dx-3\,dy=0$

Solve: 2ex+2y· dx-3dy=0

Exercise 6.3 · Q41

2e^{x+2y}\cdot dx-3\,dy=0

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$2e^{x+2y}\,dx-3\,dy=0$ gives $2e^xe^{2y}\,dx=3\,dy$ , so $e^{-2y}dy=\dfrac{2}{3}e^x\,dx$ . Integrating: $-\dfrac{1}{2}e^{-2y}=\dfrac{2}{3}e^x+c_1$ . Mult …

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Same / Similar Concept — real previous-year questions on the same or a closely similar concept, not this exact question.

CBSE 2024Set ANNUAL2 marks
$1+\dfrac{dy}{dx}=\csc(x+y)$
›Reveal solutionSolution

Put $u=x+y$ ; the equation becomes $\dfrac{du}{dx}=\csc u$ , separable.

$u=x+y \Rightarrow \dfrac{du}{dx}=1+\dfrac{dy}{dx}=\csc u$

$\sin u\,du=dx$

…

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CBSE 2023Set ANNUAL2 marksMCQ
$\dfrac{dx}{dt} = \dfrac{x\log x}{t}$
(a) $x = e^{ct}$
(b) $x + e^{ct} = 0$
(c) $x = e^t + t$
(d) $xe^{ct} = 0$
›Reveal solutionSolution

Separate variables and integrate.

$\dfrac{dx}{x\log x}=\dfrac{dt}{t}$

Integrating: $\log(\log x)=\log t+\log k=\log(kt)$

…

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CBSE 2023Set ANNUAL2 marks
$\cos x \cos y\,dy - \sin x \sin y\,dx = 0$
›Reveal solutionSolution

Separate variables: $\cot y\,dy=\tan x\,dx$ .

$\cos x\cos y\,dy=\sin x\sin y\,dx \Rightarrow \cot y\,dy=\tan x\,dx$

Integrating: $\log|\sin y|=-\log|\cos x|+\log k$

…

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CBSE 2022Set ANNUAL2 marks
$y\dfrac{dy}{dx} + x = 0$
›Reveal solutionSolution

Separate variables and integrate.

$y\dfrac{dy}{dx}+x=0 \implies y\,dy = -x\,dx$

…

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CBSE 2020Set ANNUAL2 marks
$\dfrac{dy}{dx} = x^2y + y$
›Reveal solutionSolution

Separate variables and integrate.

$\dfrac{dy}{dx} = y(x^2+1)$

Separating variables:

$\dfrac{dy}{y} = (x^2+1)\,dx$

Integrating both sides: …

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←Previous question · 6.3Q40 — Solve: y³-(dy)/(dx)=x²(dy)/(dx)→Next question · 6.3Q42 — Solve: (dy)/(dx)=ex+y+x²ey

Q.Solve: $2e^{x+2y}\cdot dx-3\,dy=0$

Concept understanding — Differential Equations with Variables Separable

Q.Solve: 2ex+2y⋅dx−3 dy=02e^{x+2y}\cdot dx-3\,dy=02ex+2y⋅dx−3dy=0

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Q.Solve: $2e^{x+2y}\cdot dx-3\,dy=0$

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