Step 1:

The function is .

Here , and

Trapezoidal Rule:

Let be continuous on . The Trapezoidal Rule for approximating is given by

, where

Using Trapezoidal Rule, .

Step 2:

Midpoint Rule:

Let be continuous on . The Midpoint Rule for approximating is given by

, where

Using Midpoint Rule, .

Step 3:

Simpsons rule :

Let be continuous on and let be an even integer,

The Simpsons Rule for approximating is given by,

where and

Using Simpson Rule, .

Solution :

Using Trapezoidal Rule, .

Using Midpoint Rule, .

Using Simpson Rule, .

Graphically Area of the region is 0.55126 sq-units.