
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Transcribed Image Text:3
Consider the integral (2x – 6x²) dx
(a) Use right endpoints and n sub-intervals to find the formula for the n-rectangle Riemann Sum.
What is the value of this sum when n =
12?
(b) Evaluate the integral by finding the limit as n → ∞ of the expression you found in part (a).
(c) If you were to compute the integral
| (20
6x2) dx using Riemann sums and right endpoints,
-
what formula for the x; would you use? Do not evaluate the integral. (Note that this is the same
integral, except that the lower limit of integration has been changed).
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