$\"\"$

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The differential equation is $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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The equation is in the form of first order differential equation $\"\"$ .

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Here $\"\"$ and $\"\"$ and $\"\"$ .

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Substitute $\"\"$ .

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Consider $\"\"$ .

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Apply derivative on each side. \ \

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$

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Substitute $\"\"$ .

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$\"\"$ .

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$\"\"$

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$\"\"$

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The equation is in the form of first order differential equation $\"\"$ .

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Here $\"\"$ and $\"\"$ .

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The intigrating factor is $\"\"$ .

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Substitute $\"\"$ in the above integrate formula.

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$\"\"$

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$\"\"$ .

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Solution of first order linear differential equation of $\"\"$ is $\"\"$ .

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Substittue $\"\"$ and $\"\"$ and $\"\"$ .

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$\"\"$

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Susbtitute $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .