This is a pdf copy of webwork 11 questions and answers for math 101 at ubc. Note that the exact numbers of your questions might differ but this provides insights for tackling your problems. And who knows you might happen to have the same exact questions! You can use it during the term or better yet...
Nikita Sharma 2019W2 MATH 101 209
Assignment Homework 11 due 9/12/14 at 9pm
Correct Answers:
1. (1 point) • A
Please complete the following survey: https://ubc.ca1.qualtrics.com/jfe/form/SV6 x6HIvc jcvP jqlL
This survey will help the Department of Mathematics 5. (1 point) What can you say about the series ∑ an in
build a complete picture of students’ attitudes and percep- each of the following cases using the Ratio Test? Answer
tions in first-year mathematics courses at UBC. It will only ”Convergent,” ”Divergent,” or ”Inconclusive.”
take 5-10 minutes to complete, and there are no wrong an-
swers.
The survey answers will be kept confidential; only the re- Note: You only have two attempts at this problem.
searchers collecting the data will see them.
ffl ? ffl ?
ffl I clicked on the link! ffl Convergent
ffl I did not click on the link. ffl Divergent
Correct Answers: ffl Inconclusive
• I clicked on the link! an+1
1. lim = 0.05
2. (1 point)
n→∞ an
Determine whether the series is absolutely convergent, ffl ?
conditionally convergent, or divergent: ffl Convergent
ffl Divergent
∞
(−1)n−1
∑ ffl Inconclusive
n=1 n + 4
an+1
2. lim =1
Note: You have only one chance to enter your answer. n→∞ an
ffl ?
Input A for absolutely convergent, C for conditionally ffl Convergent
convergent, and D for divergent: ffl Divergent
Correct Answers: ffl Inconclusive
• C
an+1
3. lim = 20
3. (1 point) Determine whether the series is absolutely n→∞ an
convergent, conditionally convergent, or divergent: Correct Answers:
∞
(−6)n • Convergent
∑ 5 • Inconclusive
n=1 n • Divergent
Note: You have only one chance to enter your answer. ∞
3n
6. (1 point) Consider the series ∑ (−1)n−1 n2 . Evaluate
n=1
Input A for absolutely convergent, C for conditionally the the following limit. If it is infinite, type ”inf”. If it does
convergent, and D for divergent: not exist, type ”div”.
Correct Answers:
• D an+1
lim =L
n→∞ an
4. (1 point) Determine whether the series is absolutely
convergent, conditionally convergent, or divergent: Answer: L =
What can you say about the series using the Ratio Test?
∞
n(−4)n Answer ”Convergent”, ”Divergent”, or ”Inconclusive”.
∑ 6n Answer:
n=1
ffl choose one
Note: You have only one chance to enter your answer. ffl Convergent
ffl Divergent
Input A for absolutely convergent, C for conditionally ffl Inconclusive
convergent, and D for divergent:
1
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