4. Let U = {(a,b, c) |b = 0} and W = {(a,b, c) | a +c = 0}. Determine whether R³ = U + V. If so, is the sum direct? Why?

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.6: Matrices
Problem 4E: Let A=[aij]23 where aij=i+j, and let B=[bij]34 where bij=2ij. If AB=[cij]24, write a formula for cij...
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4. Linear algebra problem. Please read description and solve the problem. Please find attached file.
4. Let U = {(a, b, c) | b = 0} and W = {(a,b, c) | a +c = 0}. Determine whether
R³ = U +V. If so, is the sum direct? Why?
Transcribed Image Text:4. Let U = {(a, b, c) | b = 0} and W = {(a,b, c) | a +c = 0}. Determine whether R³ = U +V. If so, is the sum direct? Why?
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