Question
Given $A=\left[\begin{array}{lll}0 & 4 & 6 \\ 3 & 0 & 1\end{array}\right]\left[\begin{array}{cc}0 & 1 \\ -1 & 2 \\ -5 & -6\end{array}\right]$ Find if possible $A^2$
✓
Answer
Product $AA (=A^2)$ is not possible as the number of columns of matrix A is not equal to its number of rows
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