1.54 Prove: 5 + 39 + .+ 4n-3)4n+1) = 4n+I п 1-5 5.9 9.13 (4n–3)(4n+1) | 1.55 Prove 7" – 2" is divisible by 5 for all n e N -

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Prove by Mathematical induction.

1
5.9
1
1.54 Prove: s + 30 + 0.13 ++
1-5
(4n–3)(4n+1)
4n+I
1.55 Prove 7" – 2" is divisible by 5 for all n e N
Transcribed Image Text:1 5.9 1 1.54 Prove: s + 30 + 0.13 ++ 1-5 (4n–3)(4n+1) 4n+I 1.55 Prove 7" – 2" is divisible by 5 for all n e N
1.55 Hint: 7k+1 – 2k+1 = 7k+1 _ 7(2k) +7(2k) – 2k+1
7(7k – 2k) + (7 – 2)2k
-
-
Transcribed Image Text:1.55 Hint: 7k+1 – 2k+1 = 7k+1 _ 7(2k) +7(2k) – 2k+1 7(7k – 2k) + (7 – 2)2k - -
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