$\"\"$ \ \

The series is $\"\"$ . \ \

$\"\"$ term series test: \ \

If the series is $\"\"$ , then test for divergence is $\"\"$ .

The $\"\"$ term of the series is $\"\"$ . \ \

$\"\"$ \ \

$\"\"$ . \ \

Therefore, the series $\"\"$ is diverges by using $\"\"$ term series test. $\"\"$ \ \

The series $\"\"$ is diverges by using $\"\"$ term series test.