Consider the following matrices 22 20 _A= (²3) B - (39) ¹-(19) ?). I = = 15 32 0 a. Find 2A + B, AB, BA b.Find a matrix C' satisfying (A – 21)C = I
Consider the following matrices 22 20 _A= (²3) B - (39) ¹-(19) ?). I = = 15 32 0 a. Find 2A + B, AB, BA b.Find a matrix C' satisfying (A – 21)C = I
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter11: Systems Of Equations
Section11.4: Determinants
Problem 52PS
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![Question 1.
Consider the following matrices
22
20
0
A-(²3) B- (3₂2) ₁¹-(19)
), = ({
A=
= =
I
15
0
a. Find 2A + B, AB, BA
b.Find a matrix C satisfying (A − 21)C = I
x
(Hint: since C is unknown take C = (
W
Y
IN
and solve the matrix equation for x, y, w, z.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F85e6e319-273d-4912-b486-0fab00e09fb3%2F656b05d4-3f2a-4d07-9edf-6fd56fc691a0%2F20e3tc9_processed.png&w=3840&q=75)
Transcribed Image Text:Question 1.
Consider the following matrices
22
20
0
A-(²3) B- (3₂2) ₁¹-(19)
), = ({
A=
= =
I
15
0
a. Find 2A + B, AB, BA
b.Find a matrix C satisfying (A − 21)C = I
x
(Hint: since C is unknown take C = (
W
Y
IN
and solve the matrix equation for x, y, w, z.
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