The sequence is .
Find the first terms of the sequence.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
If then
.
Observe the terms, the sequence is converges to .
Find the limit value of the sequence.
\If then
.
.
The sequence is converges to .
The sequence is converges to .