-5 -19 5 A = 4 В — -19 -4
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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For what value of c is it true that AB=I ?
c =
![The image displays two matrices, labeled as \( A \) and \( B \).
Matrix \( A \) is a 2x2 matrix written as:
\[
A = \begin{bmatrix}
1 & -5 \\
4 & -19
\end{bmatrix}
\]
Matrix \( B \) is also a 2x2 matrix and is represented as:
\[
B = \begin{bmatrix}
-19 & 5 \\
-4 & c
\end{bmatrix}
\]
In matrix \( B \), the element in the second row and second column is represented by the variable \( c \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F85fbe85c-4f0b-4afe-8935-da6339f6aa45%2F0cf29e80-137d-47d8-9033-ebc24b1fafc1%2Fymz6ecs_processed.png&w=3840&q=75)
Transcribed Image Text:The image displays two matrices, labeled as \( A \) and \( B \).
Matrix \( A \) is a 2x2 matrix written as:
\[
A = \begin{bmatrix}
1 & -5 \\
4 & -19
\end{bmatrix}
\]
Matrix \( B \) is also a 2x2 matrix and is represented as:
\[
B = \begin{bmatrix}
-19 & 5 \\
-4 & c
\end{bmatrix}
\]
In matrix \( B \), the element in the second row and second column is represented by the variable \( c \).
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