Question 1*. Prove, using mathematical induction, that n(3n 1) - 1 + 4 + 7 + ·.. + (3n – 5) + (3n – 2) - %3D for all positive integers n.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter8: Sequences And Series
Section: Chapter Questions
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Question 1*. Prove, using mathematical induction, that
n(3n – 1)
1 + 4 + 7 + ·.. + (3n – 5) + (3n – 2) =
%D
-
for all positive integers n.
Transcribed Image Text:Question 1*. Prove, using mathematical induction, that n(3n – 1) 1 + 4 + 7 + ·.. + (3n – 5) + (3n – 2) = %D - for all positive integers n.
Question 2*. Prove, using mathematical induction, that
1
1
+
5
+... +
1
3
3
5 7
(2n – 1)(2n + 1)
2n + 1'
for all positive integers n.
Question 3*. Prove, using mathematical induction, that 8"
3"is divisible by 5 for all integers
n 2 1.
Question 4*. Prove, using mathematical induction, that
13 + 23 + 33 + .+n3
(n(n + 1))?
4
for all positive integers n.
Question 5. Prove, using mathematical induction, that
1 1
+-+
4
1
1
+
2n - 1
2(1
2n
for all positive integers n.
Transcribed Image Text:Question 2*. Prove, using mathematical induction, that 1 1 + 5 +... + 1 3 3 5 7 (2n – 1)(2n + 1) 2n + 1' for all positive integers n. Question 3*. Prove, using mathematical induction, that 8" 3"is divisible by 5 for all integers n 2 1. Question 4*. Prove, using mathematical induction, that 13 + 23 + 33 + .+n3 (n(n + 1))? 4 for all positive integers n. Question 5. Prove, using mathematical induction, that 1 1 +-+ 4 1 1 + 2n - 1 2(1 2n for all positive integers n.
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