The function is
.
Apply derivative on each side with respect to
.

Verify the differential equation
and initial condition
correspond to the function
.
Consider
.
Rewrite the above equation.
\
Substitute
in the above equation.


Hence
.
correspond to the function
.
Substitute
in above function.

The initial condition
correspond to the function
.
The differential equation
and initial condition
is a solution of the function
.
The differential equation
and initial condition
is a solution of the function
.