2 -1 -2 1 Determine whether the matrices A = 3 1 and B = 1 1 are invertible by finding 1 -1 their determinants. Is the matrix AB invertible? 2 02
2 -1 -2 1 Determine whether the matrices A = 3 1 and B = 1 1 are invertible by finding 1 -1 their determinants. Is the matrix AB invertible? 2 02
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
![[2
-1 5
2 -2 1
Determine whether the matrices A
1
and B =
1
1
are invertible by finding
1
2
2 -1 2
their determinants. Is the matrix AB invertible?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F31330aa5-a64b-4d2f-80e6-6ea74abb2a34%2F425bb48c-e562-4125-a530-8deec790c644%2Fih5blql_processed.png&w=3840&q=75)
Transcribed Image Text:[2
-1 5
2 -2 1
Determine whether the matrices A
1
and B =
1
1
are invertible by finding
1
2
2 -1 2
their determinants. Is the matrix AB invertible?
Expert Solution
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Step 1
We have given two matrices and both of them are square matrices. If the determinant of the square matrix is zero then that matrix is not invertible.
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