$\"\"$

The integral is $\"\"$ .

Rewrite the above equation as $\"\"$ .

$\"\"$

Comparison theorem:

Suppose that $\"\"$ and $\"\"$ are continuous functions with $\"\"$ for $\"\"$ ,

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

2.If $\"\"$ is divergent, then $\"\"$ is also divergent.

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

$\"\"$

Since $\"\"$ is a infinite value, it is divergent.

Thus, $\"\"$ is divergent.

$\"\"$

$\"\"$ is divergent.