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Suppose that AB C, where A is 3x4 and C' is 3x2. Then B must be To find the entry c21 of C = AB, you can take the dot product of of A with column of B. row Suppose that [0 2 0]B = [6 8 B must be - 2. Then the second row of [C

Suppose that AB C, where A is 3x4 and C' is 3x2. Then B must be To find the entry c21 of C = AB, you can take the dot product of of A with column of B. row Suppose that [0 2 0]B = [6 8 B must be - 2. Then the second row of [C

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Part I Suppose that AB C, where A is 3x4 and C is 3x2. Then B must be To find the entry c21 of C = AB, you can take the dot product of row of A with column of B. Suppose that [0 2 0]B = [6 8 -2]. Then the second row of B must be 1 0 0 1 0 0 0 1 0 0 1 0 0 0 10 0 1 Let D = Find D by treating D as a block 1 00 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 I I D² I I matrix 000
Transcribed Image Text:Part I Suppose that AB C, where A is 3x4 and C is 3x2. Then B must be To find the entry c21 of C = AB, you can take the dot product of row of A with column of B. Suppose that [0 2 0]B = [6 8 -2]. Then the second row of B must be 1 0 0 1 0 0 0 1 0 0 1 0 0 0 10 0 1 Let D = Find D by treating D as a block 1 00 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 I I D² I I matrix 000
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