$\"\"$

Alternating Series Test :

If the alternating series $\"\"$ satisfies

(i) $\"\"$ ,

(ii) $\"\"$ , then the series is convergent.

$\"\"$

The series is $\"\"$ .

The function $\"\"$ is decreasing because denominrator is increasing.

Therefore, the sequence $\"\"$ is eventually decreasing.

Thus, condition (i) is verified.

$\"\"$

Find $\"\"$ .

$\"\"$

As $\"image\"$ , then $\"image\"$ . \ \

$\"\"$

$\"\"$ . \ \

Thus the given series is convergent by the Alternating Series Test. \ \

$\"\"$ \ \

The series $\"\"$ is convergent.