$\"\"$

The differential equation is $\"\"$ .

$\"\"$

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

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

Integrating factor :

$\"\"$

Let $\"\"$ then $\"\"$ .

$\"\"$

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

$\"\"$

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

Substitute corresponding values in the above equation.

$\"\"$

$\"\"$ .

$\"\"$

$\"\"$ .