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Let a eR which expressions are correct? and give the justification why they are part of the Borel o-algebra, B(R) 1 ,a+ u- 1 a + {a} {a} nEN Q = U{a;}. a, is rational U {ai}, a, is irrational ieN U(--) 1 {a} U {a,}. a, is rational U («.}, a, is rational

Let a eR which expressions are correct? and give the justification why they are part of the Borel o-algebra, B(R) 1 ,a+ u- 1 a + {a} {a} nEN Q = U{a;}. a, is rational U {ai}, a, is irrational ieN U(--) 1 {a} U {a,}. a, is rational U («.}, a, is rational

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 46E
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Mathematical analysis
Let a eR which expressions are correct? and give the justification why they are part of the Borel o-algebra, B(R) {a} 1 a + {a} --, a+ n nEN Q = U{a;}. a; is rational U {ai}, a, is irrational %3D ieN U(-) {n} U{a,}. a; is rational U (a.}, , is rational
Transcribed Image Text:Let a eR which expressions are correct? and give the justification why they are part of the Borel o-algebra, B(R) {a} 1 a + {a} --, a+ n nEN Q = U{a;}. a; is rational U {ai}, a, is irrational %3D ieN U(-) {n} U{a,}. a; is rational U (a.}, , is rational
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