$\"\"$

The differential equation is $\"\"$ .

The function is $\"\"$ .

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

$\"\"$

Derivatives of the logarithm function. : $\"\"$ .

$\"\"$ .

Consider $\"\"$ .

Substitute $\"\"$ and $\"\"$ in the above equation.

$\"\"$

Hence, $\"\"$ .

The function $\"\"$ is not a solution of the differential equation. $\"\"$

The function $\"\"$ is not a solution of the differential equation.