$\"\"$

The two non negative series are $\"\"$ and $\"\"$ .

$\"\"$ and $\"\"$ are convergent.

Therefore, $\"\"$ is converges.

If the values of $\"\"$ then $\"\"$ is also converges.

Therefore, If the non negative series $\"\"$ and $\"\"$ converge then $\"\"$ converges.

$\"\"$

If the non negative series $\"\"$ and $\"\"$ converge then $\"\"$ converges.