$\"\"$

\

Consider $\"\"$ .

\

The series $\"\"$ is converges by $\"\"$ -series test.

\

Consider $\"\"$ .

\

The series $\"\"$ is diverges by $\"\"$ -series test.

\

Find $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

$\"\"$ .

\

Therefore, the series are $\"\"$ and $\"\"$ .

\

$\"\"$

\

$\"\"$ and $\"\"$ .