MTH132 Section 5 & 18, Quiz 1 - Michigan State University
Name (Print Clearly): Student Number:
MTH132 Section 5 & 18, Quiz 6
Nov 17, 2008 Instructor: Dr. W. Wu
Instructions: Answer the following questions in the space provided. There is more than adequate space provided to answer each question. The total time allowed for this quiz is 15 minutes.
1. [2 pts each]. Convert the sigma notations to addition (summation) notation and evaluate the sums.
(a) [pic]
[pic]
(b) [pic]
[pic]
2. Evaluate the sums by formulas.
(a)[2 pts] [pic]
(b)[3 pts] [pic]
3. [2 pts each]. Suppose[pic],[pic],[pic]. Use the rules to find
(a) [pic]
(b) [pic]
(c) [pic]
4. Let[pic]defined over[pic]. Consider the Riemann sum:[pic]. Usually, we choose equal length [pic]. (a) [2 pts]. Partition [pic] into 4 subintervals of equal length, then choose the right-hand endpoint of each subinterval ([pic]) to evaluate the Riemann sum.
[pic]
[pic]
[pic]
(b) [2 pts]. Find a formula for the Riemann sum obtained by dividing the interval into n equal subintervals.
[pic]
[pic]
[pic]
(c) [1 pt]. Find a definite integral to express the limit of the Riemann sum as n approaches infinity.
the limit of the Riemann sum as n approaches infinity is the definite integral of this function over [pic]
[pic]
(d) [bonus 2 pts]. Evaluate this definite integral. (Take the limit of this sum or use the area of a certain region)
[pic]
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