$\"\"$

The function is $\"\"$ .

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

The denominator of the function should not be zero.

$\"\"$

$\"\"$ .

The domain of $\"\"$ real numbers except at $\"\"$ .

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

The Non-removable discontinuity is at $\"\"$ .

$\"\"$

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