Enter the expression that would produce the answer (do include the answer) for row 1 column 1 of the multiplied matrix A ∗ B: List the expression in order with the original values using * for multiplication.    then find A ∗ B

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.2: Exponents And Radicals
Problem 6E
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Enter the expression that would produce the answer (do include the answer) for row 1 column 1 of the multiplied matrix A ∗ B:

List the expression in order with the original values using * for multiplication.   

then find A ∗ B

7
[3
If A =
12
[-3
and B =
4
6.
-2.
Transcribed Image Text:7 [3 If A = 12 [-3 and B = 4 6. -2.
Expert Solution
Step 1

To multiply matrix A with matrix B, The number of columns of matrix A and the number of rows of matrix B should be equal.

For multiplication of 2 X 2 matrices,

A=abcd,  B=pqrs

the first row of the resultant matrix is as below:

=ap+br

Thus, the resultant matrix is as below:

AB=ap+braq+bscp+drcq+ds

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