Informal Exercise 20. Observe that 4| 102. Show that to find Rem(n, 4), you just need to replace n e N with the number formed from the last two digits of n. Show that if di and do are the last two digits, then n = 2d1 + do mod 4.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 56E
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Informal Exercise 20. Observe that 4| 102. Show that to find Rem(n, 4),
you just need to replace n e N with the number formed from the last two
digits of n. Show that if d1 and do are the last two digits, then
n = 2d1 + do mod 4.
Transcribed Image Text:Informal Exercise 20. Observe that 4| 102. Show that to find Rem(n, 4), you just need to replace n e N with the number formed from the last two digits of n. Show that if d1 and do are the last two digits, then n = 2d1 + do mod 4.
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