Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section: Chapter Questions
Problem 28MS
Related questions
Question
100%
Find inverses using elementary row operation
![4 5
D= 20 3
1 5
5 -1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd8e44122-cbc5-4de0-925c-c1bd576c47e6%2F02abd976-7276-4d77-b55c-435ec3162a15%2Ffe0opl_processed.png&w=3840&q=75)
Transcribed Image Text:4 5
D= 20 3
1 5
5 -1
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1
At first we augment the given matrix with an identity matrix
Now we convert the matrix on the left into identity matrix, and the resultant matrix on the right will be our required inverses matrix,
Step 2
We perform following row operations,
Finally we get
Step by step
Solved in 3 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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