$\"\"$

The function is $\"\"$ and $\"\"$ .

The function $\"\"$ is greater than zero, when the graph of the function is above $\"\"$ -axis.

The graph of the function is above $\"\"$ -axis for $\"\"$ .

The solution of the function $\"\"$ is $\"\"$ when $\"\"$ .

$\"\"$

The solution of the inequality is $\"\"$ .