Decide Whether or Not Matrix a and Matrix B Are

question 105

Multiple Choice

Decide whether or not matrix A and matrix B are inverses.
- $$A = \left[ \begin{array} { r r r } 2 & - 1 & 0 \\- 1 & 1 & - 2 \\1 & 0 & - 1\end{array} \right] \text { and } B = \left[ \begin{array} { r r r } 1 & - 1 & 2 \\- 3 & - 2 & 4 \\- 1 & 1 & 1\end{array} \right]$$

• A) Yes
• B) No

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