Double Integrals over Rectangles: Examples
 

1. Use the Midpoint rule with $m=n=2$ to estimate the value of the integral MATH, where MATH.

Answer:

With the Midpoint rule, we evaluate the value of the function in the center of four rectangles formed by the area. Thus we come up with the

points MATH and $y_{2}=\frac{7}{4}.$ The area of each rectangle is MATH
MATH
MATH
MATH

2. Using your answer from the last equation, find the average value of the function over the region specified above.
 

Answer:
MATH

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