1. Let q-p" be a prime power. Show that X+ 1 is irreducible in F [X] if and only if q=3 mod4. (Hint: Use the fact that F is cyclic, also since its an if and only if please prove both directions)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 55RE
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1. Let q-p" be a prime power. Show that X+ 1 is irreducible in F_[X] if
and only if q=3 mod4. (Hint: Use the fact that F
is cyclic, also since
its an if and only if please prove both directions)
Transcribed Image Text:1. Let q-p" be a prime power. Show that X+ 1 is irreducible in F_[X] if and only if q=3 mod4. (Hint: Use the fact that F is cyclic, also since its an if and only if please prove both directions)
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