$\"\"$

The function is $\"\"$

$\"\"$

To estimate value of limit , construct a table with nearest values of $\"\"$

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

$\"\"$	\ $\"\"$ \	\ $\"\"$ \	$\"\"$	$\"\"$	$\"\"$	$\"\"$
$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$	$\"\"$

Observe the table.

The value of $\"\"$ at $\"\"$ is $\"\"$ and the value of $\"\"$ at $\"\"$ is $\"\"$ .

The value of $\"\"$ .

$\"\"$

Now we prove this graphically.

$\"\"$

Observe the graph.

As $\"\"$ approaches to $\"\"$ , $\"\"$ gets closer to $\"\"$ .

$\"\"$

$\"\"$ .