Find a basis for the span of the vectors
\[ \begin{bmatrix} 3 \\ 4 \\ -5 \end{bmatrix} \qquad \begin{bmatrix} 15 \\ 20 \\ -25 \end{bmatrix} \qquad \begin{bmatrix} -2 \\ 0 \\ 3 \end{bmatrix} \qquad \begin{bmatrix} -4 \\ 3 \\ -3 \end{bmatrix} \qquad .\]Click for answer
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