Step 1: \ \
\The function
. \ \
Apply integral on each side with respect to
. \ \
.
Apply formula
. \ \
.
Its not
.
Consider
.
Substitute
and
in
.

Substitute
in
.
.
Step 2: \ \
\The differential equation is
.
Again apply integral on each side with respect to
.
. \ \
Apply sum and difference rule in integration
. \ \
.
Apply constant rule of integration
.
.
Step 3: \ \
\Substitute
and
in
.
\ \
Substitute
in
.
.
The equation
.
Solution: \ \
\The equation
. \ \
\ \