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Decide Whether or Not Matrix a and Matrix B Are

Question 35

Multiple Choice

Decide whether or not matrix A and matrix B are inverses.
- A=[100−110111] and B=[100110−2−11]A = \left[ \begin{array} { r r r } 1 & 0 & 0 \\- 1 & 1 & 0 \\1 & 1 & 1\end{array} \right] \text { and } B = \left[ \begin{array} { r r r } 1 & 0 & 0 \\1 & 1 & 0 \\- 2 & - 1 & 1\end{array} \right]


A) Yes
B) No

Correct Answer:

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