Observe the table:
\The number of subintervals are
.
The function values are
,
,
,
and
.
(a) Approximate the integral
using the Trapezoidal Rule.
Trapezoidal rule :
\
.


Substitute
,
,
,
and
.




.
Using the Trapezoidal rule
.
Approximate the integral
using the Simpsons Rule.
Simpsons rule :
\
.


Substitute
,
,
,
and
.




.
Using the Simpsons Rule
.
(b)
\Graph:
\Plot the points:
,
and
.
Draw the curve.
\By graphing utility, the equation is
.
The integral is
.








.
.
(a)
\Trapezoidal Rule
.
Simpsons Rule
.
(b) The equation is
.
.