What conditions on b₁, b2, ba, ba make each system solvable? Find a in that case: 12 3] 2 4 6 257 39 9 12 24 25 39 X2 = by by ba #1 X2 X3 ba bs ba Show by elimination that (b₁, b2, b3) is in the column space if b3 - 2b2 +4b₁ = 0. 1 3 1] A 3 8 2 240 What combination of the rows of A gives the zero row?

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 3CEXP
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I need help with this please parts a and b

What conditions on b₁,b2, b3, ba make each system solvable? Find in that case:
[1 2]
1
2 3
24
2
4
25
39
II
=
bi
b₂
ba
دا دا دن
2
3
6
5 7
9 12
21
X2
X3
02
112
bs
ba
Show by elimination that (b₁,b2, b3) is in the column space if b3 - 2b2 + 4b1 = 0.
[1 3 1]
A = 3 8 2
240
What combination of the rows of A gives the zero row?
Transcribed Image Text:What conditions on b₁,b2, b3, ba make each system solvable? Find in that case: [1 2] 1 2 3 24 2 4 25 39 II = bi b₂ ba دا دا دن 2 3 6 5 7 9 12 21 X2 X3 02 112 bs ba Show by elimination that (b₁,b2, b3) is in the column space if b3 - 2b2 + 4b1 = 0. [1 3 1] A = 3 8 2 240 What combination of the rows of A gives the zero row?
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