Exercise 1.1.18

Question

If $A=C R$, what are the $C R$ factors of the matrix $\left[\begin{array}{ll}0 & A \ 0 & A\end{array}ight]$?

Neil Z. · Accepted Answer

\begin{align*}
\begin{bmatrix}
0 & A\
0 & A\
\end{bmatrix} &= \begin{bmatrix}
0 & CR \
0 & CR\
\end{bmatrix} \[5pt]
&= \begin{bmatrix}
C \
C\
\end{bmatrix}\begin{bmatrix}
0 & R \
0 & R \
\end{bmatrix}
\end{align*}

Exercise 1.1.18

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Exercise 1.1.18

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