Find a basis for the span of the vectors

\[ \begin{bmatrix} -3 \\ 0 \\ -3 \end{bmatrix} \qquad \begin{bmatrix} -1 \\ -5 \\ 4 \end{bmatrix} \qquad \begin{bmatrix} 0 \\ -3 \\ 3 \end{bmatrix} \qquad \begin{bmatrix} 11 \\ 7 \\ 4 \end{bmatrix} \qquad .\]

Click for answer

Click for Latex code