Solved: Let \( A = \begin{bmatrix}1&-2&-1\\ 0&4&-1\\ -3&2&1\end{bmatrix} \), \( B = \beg

Class: 12 Subject: Math Topic: Matrices Year: 2024

Question:

Let \( A = \begin{bmatrix}1&-2&-1\\ 0&4&-1\\ -3&2&1\end{bmatrix} \), \( B = \begin{bmatrix}-2\\ -5\\ -7\end{bmatrix} \), \( C = [987] \). Which of the following is defined?

A. Only AB
B. Only AC
C. Only BA
D. All AB, AC and BA

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