Suppose that AB C, where A is 3x4 and C is 3x2. Then B must be 4 To find the entry c21 of C = AB, you can take the dot product of row| 2 V of A with column 1 vof B. Suppose that [0 2 0]B= [6 8 B must be -2. Then the second row of 3 4 -1 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 Let D Find D by treating D as a block 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 I I D? I I matrix
Suppose that AB C, where A is 3x4 and C is 3x2. Then B must be 4 To find the entry c21 of C = AB, you can take the dot product of row| 2 V of A with column 1 vof B. Suppose that [0 2 0]B= [6 8 B must be -2. Then the second row of 3 4 -1 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 Let D Find D by treating D as a block 1 0 0 1 0 0 0 1 0 0 1 0 0 0 1 0 0 1 I I D? I I matrix
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter7: Exponents And Exponential Functions
Section7.1: Multiplication Properties Of Exponents
Problem 4AGP
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