(d) Show that Axiom 5 holds by producing an ordered pair- u such that u + (-u) = 0 for u = (u1, u2). Solution: If u = (u1, u2), then - u= ( satisfies u + (- u) = ( , ) = 0; thus Axiom 5 holds. %3D %3D (e) Find two vector space axioms that fail to hold. Solution: Axioms 7 fail to hold. For example: ) = ( ku +kv = (ku1, ku2) + (kv1, kv2) = ( k(u + v) + ku +kv, k 1. Axioms 8 fail to hold. For example: (k+1)(u1, u2) =( ku + lu = (ku1, ku2) + (lu1, lu2) = ( k(u + v) = k( %3D (k+l)u
(d) Show that Axiom 5 holds by producing an ordered pair- u such that u + (-u) = 0 for u = (u1, u2). Solution: If u = (u1, u2), then - u= ( satisfies u + (- u) = ( , ) = 0; thus Axiom 5 holds. %3D %3D (e) Find two vector space axioms that fail to hold. Solution: Axioms 7 fail to hold. For example: ) = ( ku +kv = (ku1, ku2) + (kv1, kv2) = ( k(u + v) + ku +kv, k 1. Axioms 8 fail to hold. For example: (k+1)(u1, u2) =( ku + lu = (ku1, ku2) + (lu1, lu2) = ( k(u + v) = k( %3D (k+l)u
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 38E
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