$\"\"$

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

The sequence is $\"\"$ .

$\"\"$

Multiply top and bottom by the conjugate.

$\"\"$

Consider the equation $\"\"$ .

Multiply numerator and denominator by $\"\"$ .

$\"\"$

Find the limit as $\"\"$ .

$\"\"$

Thus, the sequence converges to $\"\"$ .

$\"\"$

The sequence converges to $\"\"$ .