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Question: Answered & Verified by Expert
If $x^\alpha \frac{d y}{d x}=y^\beta(\gamma \log x+\delta \log y+1)$ is a homogeneous differential equation, then
MathematicsDifferential EquationsAP EAMCETAP EAMCET 2023 (15 May Shift 2)
Options:
  • A $\alpha=\beta$ and $\gamma=-\delta$
  • B $\alpha=\beta$ and $\gamma=\delta$
  • C $\alpha \neq \beta$ and $\gamma=\delta$
  • D $\alpha \neq \beta$ and $\gamma \neq \delta$
Solution:
1343 Upvotes Verified Answer
The correct answer is: $\alpha=\beta$ and $\gamma=-\delta$
Given, $x^\alpha \frac{d y}{d x}=y^\beta(\gamma \log x+\delta \log y+1)$
$\Rightarrow \frac{d y}{d x}=\frac{y^\beta}{x^\alpha}\left(\log x^\gamma \cdot y^\delta e\right)$
for homogeneous differential equation $\alpha=\beta$ and $\gamma=-\delta$.

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