# Help me PLEASE!!?

Let f(x) = x2, and compute the Riemann sum of f over the interval [6, 8], choosing the representative points to be the left endpoints of the subintervals and using the following number of subintervals (n).

(a) Two subintervals of equal length (n = 2)

(b) Five subintervals of equal length (n = 5)

(c) Ten subintervals of equal length (n = 10)

(d) Can you guess at the area of the region under the graph of f on the interval [6, 8]?

### 1 Answer

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- rotchmLv 74 weeks ago
U already asked this, and was answered to you in:

https://ca.answers.yahoo.com/question/index?qid=20...

What did you not understand in it?

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a) cut the interval [6,8] in two parts. What are thus the width & height of the two rectangles. same idea for b)&C).