$\"\"$

The series is $\"\"$ .

Integral test:

If $\"\"$ is convergent then $\"\"$ is convergent.

Here $\"\"$ .

Find $\"\"$ .

The function is decreasing .

$\"\"$ .

Integral formula: $\"\"$ .

$\"\"$

Therefore, $\"\"$ is convergent.

The series $\"\"$ is a convergent. $\"\"$

Series is convergent.