To find: The inverse of the matrix if it is not singular.
Answer to Problem 19RE
The matrix is singular.
Explanation of Solution
Given information:
The matrix is
Calculation:
The matrix A is of 2 by 2 order.
Obtain the matrix
Perform the row operation
The above reduced matrix cannot contain the identity matrix
Therefore, the matrix is singular.
Chapter 11 Solutions
Precalculus Enhanced with Graphing Utilities
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