$\"\"$

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The function is $\"\"$ .

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

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$\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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$\"\"$ .

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

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$\"\"$

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$\"\"$ .

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

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$\"\"$ .

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$\"\"$ .

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$\"\"$

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The differential function is $\"\"$ .

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Substitute the values of $\"\"$ , $\"\"$ and $\"\"$ in the differential function.

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$\"\"$

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$\"\"$ .

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$\"\"$

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The function $\"\"$ satisfies the differential function is $\"\"$ .