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JEE Mains · Maths · STD 12 - 9. differential equations

ધારો કે વિકલ સમીકરણ \(2 y e ^{x / y^{2}} d x+\left(y^{2}-4 x e ^{x / y^{2}}\right) d y=0\) નો ઉકેલ \(x=x(y)\) તથા \(x(1)=0\) છે. તો \(x( e )=\)............

  1. A \(e \log _{e}(2)\)
  2. B \(- e \log _{ e }(2)\)
  3. C \(e ^{2} \log _{ e }(2)\)
  4. D \(- e ^{2} \log _{ e }(2)\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(- e ^{2} \log _{ e }(2)\)

Step-by-step Solution

Detailed explanation

\(2 y e^{x / y^{2}} d x+\left(y^{2}-4 x e^{x / y^{2}}\right) d y=0\) \(2 e^{x / y^{2}}[y d x-2 x d y]+y^{2} d y=0\) \(2 e^{x / y^{2}}\left[\frac{y^{2} d x-x \cdot(2 y) d y}{y}\right]+y^{2} d y=0\) Divide by \(y^{3}\)…
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