Word Count : 98

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Matrix $A=\begin{bmatrix}-1&2&0\\-1&1&1\\0&1&0\end{bmatrix}$. First find $A^2=A\times A$: Row 1·Col 1: $(-1)(-1)+2(-1)+0(0)=1-2+0=-1$ Row 1·Col 2: $(-1)(2)+2(1)+0(1)=-2+2+0=0$ Row 1·Col _______ ______ _______ __________ ________ ____.
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