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D Y D X = Y 2 + 2 Y + 2 - Mathematics

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प्रश्न

\[\frac{dy}{dx} = y^2 + 2y + 2\]

योग
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उत्तर

We have,

\[\frac{dy}{dx} = y^2 + 2y + 2\]

\[ \Rightarrow \frac{dy}{dx} = y^2 + 2y + 1 + 1\]

\[ \Rightarrow \frac{dy}{dx} = \left( y + 1 \right)^2 + 1^2 \]

\[ \Rightarrow \frac{1}{\left( y + 1 \right)^2 + \left( 1 \right)^2}dy = dx\]

Integrating both sides, we get

\[\int\frac{1}{\left( y + 1 \right)^2 + \left( 1 \right)^2}dy = \int dx\]

\[ \Rightarrow \tan^{- 1} \left( \frac{y + 1}{1} \right) + C = x\]

\[ \Rightarrow x = \tan^{- 1} \left( y + 1 \right) + C\]

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अध्याय 22: Differential Equations - Revision Exercise [पृष्ठ १४५]

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आरडी शर्मा Mathematics [English] Class 12
अध्याय 22 Differential Equations
Revision Exercise | Q 20 | पृष्ठ १४५

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