Math141 Section 03**Spring 2014
Practice Exam 4 (C)
You have 50 minutes to complete this exam. No calculator is permitted. Please answer one
(numbered) question per answer sheet. Write your name, your section number, and the
problem number on each answer sheet. Sign the honor page on the ▯rst answer sheet only
1. Using tests from class, determine which of the following series converge and which diverge. If
a series is convergent, justify whether the convergence is conditional or absolute.
X1 X1 ▯ ▯ X n
(a) (▯1) 3 n▯1=4 (b) (▯1)+1cos 1 (c) (▯1)n(ln(n))
n=2 n=1 n=2
2. Find the following sums, or explain why the given series is divergent.
X1 3 3