The differential equation is
.


Apply integrate on each side.
\

Substitute
.
and
.
Apply derivative on each side with respect to
.
.

Substiute the corresponding values in the integral.
\
Substitute
.


Substitute
and 

.
The solution is
.
For find the value of
substitute
.

Substitute
in 
.
Therefore, the particular solution is
.
The solution is
.