   Chapter 10.2, Problem 9ES ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193

#### Solutions

Chapter
Section ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193
Textbook Problem
1 views

# Find each of the following products? a. [ 3 0 1 − 2 ] [ 1 0       − 1 4 2 1 ] b. [ 2 0       0 1 − 1 0 ] [ 1 5 − 2       3 − 4 2 ] c. [ − 1 2 ] [ 2         3 ] d. [ 1 2 3 − 1 ] 2

To determine

(a)

Find the product of [ 1 0 1 2 4 1 ].

Explanation

Given information:

[ 1 0 1 2 4 1 ]

Calculation:

We have [ 3 1 0 2 ][ 1 0 1 2 4 1 ].

The first matrix has dimensions 2 x 2 and the second matrix has dimension 2 x 3. Since the inner dimensions are equal, we can multiply the matrices. Moreover, the product should be 2 x 3-matrix.

Multiply the rows of the first matrix with the columns of the second matrix (adding the products of the corresponding elements):

[ 3 1 0 2 ][ 1 0 1 2 4 1 ]=[ 31+00 11+( 2 )0 3( 1 )+02 1( 1 )+<

To determine

(b)

Find the product of [ 2 0 0 1 1 0 ][ 1 5 2 3 4 2 ].

To determine

(c)

Find the product of .

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