(a) Find the least positive k E N such that 3* =10 1. (b) Using this k, prove: for all m e N, 3m =10 3m%k

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 64E
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*8. (a) Find the least positive k E N such that 3*
=10 1.
(b) Using this k, prove: for all m e N, 3m =10 3m%k.
(c) Use this to show that 32022 +1 is divisible by 10.
Transcribed Image Text:*8. (a) Find the least positive k E N such that 3* =10 1. (b) Using this k, prove: for all m e N, 3m =10 3m%k. (c) Use this to show that 32022 +1 is divisible by 10.
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