Chapter A.2, Problem 16P

In each of Problems 15 through 17, determine whether ${\text{b}}_j\in S_{\text{col}}\left(\text{A}\right),j=1,2.$ If so, express ${\text{b}}_j$ as a linear combination of the columns of $\text{A}$.

$\text{A=}\left(\begin{array}{cccc}1& -1& -3& 3\\ 2& 0& -4& 2\\ -1& 2& 4& -5\end{array}\right),b_1=\left(\begin{array}{c}-1\\ 1\\ 0\end{array}\right),b_2=\left(\begin{array}{c}2\\ 0\\ -4\end{array}\right)$