The compounded amount function is
.
Where the initital amount
is constant.
Consider the function is
.
Apply logarithm on each side.
\



Evaluate of the limit.
\



L
Hospital
s Rule :
If the value of limit is indeterminate form of type
or
, then

Since
use L
Hospital
s rule.







.
Substitute
in
.
Therefore as
tends to
, the compounded amount is
.
.