$\"\"$

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The function is $\"\"$ .

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Rewrite the function.

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$\"\"$

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$\"\"$

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$\"\"$

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Integrate on both side.

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$\"\"$

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Integral formula : $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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$\"\"$

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The initial condition is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the function.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in the integral function.

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$\"\"$ .

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Therefore the particular solution is $\"\"$ .

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$\"\"$

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The particular solution is $\"\"$ .