$\"\"$

\

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

\

$\"\"$

\

$\"\"$ .

\

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

\

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

\

The intigrating factor is $\"\"$ .

\

Find $\"\"$ .

\

Substitute $\"\"$ .

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

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

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$

\

Substitute $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

Subsitute $\"\"$ in $\"\"$ .

\

$\"\"$ .

\

$\"\"$

\

$\"\"$ .