Decide Whether or Not the Matrices Are Inverses of Each $\left[ \begin{array} { r r r } 2 & - 1 & 0 \\ - 1 & 1 & - 2 \\ 1 & 0 & - 1 \end{array} \right]$

Multiple Choice

Decide whether or not the matrices are inverses of each other.
- $\left[ \begin{array} { r r r } 2 & - 1 & 0 \\ - 1 & 1 & - 2 \\ 1 & 0 & - 1 \end{array} \right]$ and $\left[ \begin{array} { r r r } 1 & - 1 & 2 \\ - 3 & - 2 & 4 \\ - 1 & 1 & 1 \end{array} \right]$

A) $Y e s$
B) $\mathrm { No }$