$\"\"$

The function is $\"\"$ .

The domain of a function is all possible values of $\"\"$ .

Denominator of the function should not be zero.

$\"\"$

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

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

The domain of $\"\"$ is all real numbers except at $\"\"$ and $\"\"$ .

The function $\"\"$ is continuous at every value of $\"\"$ except at $\"\"$ and $\"\"$ .

The non removable discontinuity is at $\"\"$ and $\"\"$ .

$\"\"$

The non removable discontinuity is at $\"\"$ and $\"\"$ .