Step 1:

The function $\"\"$ .

Graph the function

$\"\"$

Observe the graph: \ \

As $\"\"$ tends to $\"\"$ from left hand side, $\"\"$ approaches to $\"\"$ .

As $\"\"$ tends to $\"\"$ from right hand side, $\"\"$ approaches to $\"\"$ .

As the right hand limit and left hand limit are not equal, limit does not exist at $\"\"$ .

The function $\"\"$ has a non-removable discontinuity at $\"\"$ .

Solution :

The function $\"\"$ has a non-removable discontinuity at $\"\"$ .