[1 1 · 1/2 0 2 2. Let A = 20 = [₁]. Is w in Col4? Is w in Nul4? and and w=

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Let A = [1 1 2 0 , 2 0 2 -3] (the comma denotes a new line), and w = [4 , 1] (the comma denotes a new line). Is w in ColA? Is w in NulA? Any help (especially with detailed steps) would be greatly appreciated. Thanks in advance. 

2. Let A =
[1 1
L2
20
0 2 -3
=[4]. Is w in Col4? Is w in Nul4?
a
and w=
Transcribed Image Text:2. Let A = [1 1 L2 20 0 2 -3 =[4]. Is w in Col4? Is w in Nul4? a and w=
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How are you multiplying Aw? A and w have different dimensions (A is 2x4, w is 2x1), so you aren't able to multiply them. 

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