$\"\"$

If a sequence $\"\"$ is convergent, then there exist $\"\"$ , where $\"\"$ is a constant.

The sequence is $\"\"$ .

$\"\"$ .

This can be tricky to evaluate directly, so we can take $\"\"$ .

$\"\"$

Therefore $\"\"$ converges to $\"\"$ .

$\"\"$

The sequence converges to $\"\"$ .