Section 5.1 Read the
entire section. Then read Example 1
again. Answer the following questions. Send an
e-mail with subject line **MA251** to selliott@utm.edu .

1) Two of the approximations used in this section are Ln and Rn. Fill in the blanks: Rn uses ______ rectangles whose heights are found with _____ _____ .

n, right endpoints

2) Consider Example 2 and Figure 7. What is the area of the region between the graph of f(x) = x^2 and the x axis from 0 to 1?

1/3

3) What is the sum of 1^2 + 2^2 + 3^2 + . . .
+ n^2 ?

[n(n+1)(2n+1)]/6