$\"\"$

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The function is $\"\"$ .

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Apply derivative on each side with respect to $\"\"$ .

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$\"\"$

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Use sum rule of derivative : $\"\"$ .

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$\"\"$

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The product rule of derivative : $\"\"$ .

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Consider $\"\"$ and $\"\"$ .

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

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$\"\"$

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$\"\"$ .

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$\"\"$

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The differential equation is $\"\"$ .

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Consider left hand side $\"\"$ .

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Substitute $\"\"$ .

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$\"\"$

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Simplify the expression.

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$\"\"$

\

$\"\"$

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Substitute $\"\"$ .

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$\"\"$

\

Therefore, $\"\"$ is a solution of differential equation $\"\"$ .

\

$\"\"$

\

$\"\"$ is a solution of differential equation $\"\"$ .