Step 1:

The expression is $\"\"$

Draw the table for different values x near 4.

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

x	3.9	3.99	3.999	4.001	4.01	4.1
f(x)	0.2041	0.2004	0.2000	0.1999	0.1996	0.1960

Observe the table,

The x tends to 3.999 the function f(x) approaches to 0.2000

The x tends to 4.001 the function f(x) approaches to 0.1999

There fore the value of x tends to 4 the function f(x) approaches to 0.2

$\"\"$

Step 2:

Graph the function

$\"\"$

Observe the graph

As x tends to 4 the function f(x) approaches to 0.2.

$\"\"$ .

Solution:

$\"\"$