8) Let a perfect square be an integer s such that 5 = K² for some integer K. Show to that any perfect square is congruent 0 or 1 mod 4.
8) Let a perfect square be an integer s such that 5 = K² for some integer K. Show to that any perfect square is congruent 0 or 1 mod 4.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:8) Let a perfect square be an integer
s
such that
5 = K² for some integer K.
Show
to
that
0 or
any perfect square is congruent
1 mod 4.
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