Step 1 :

An integrating factor for the first order linear differential equation

$\"\"$ is $\"\"$

The solution of the differential equation is

$\"\"$

Step 2 :

The equation is $\"\"$ and the boundary condition is $\"\"$ .

Compare the equation $\"\"$ with $\"\"$ .

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

Find the integrating factor :

$\"\"$

Step 3 :

Find the solution of the differential equation :

$\"\"$

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

$\"\"$

Substitute $\"\"$ in equation. (1). $\"\"$

The solution of the differential equation is $\"\"$

Solution :

The solution of the differential equation is $\"\"$