Question
\(\left[\begin{array}{ccc} \vec{a} + 2\vec{b} - \vec{c} , \vec{a} - \vec{b} , \vec{a} - \vec{b} -\vec{c} \end{array}\right] = \)
\(\left[\begin{array}{ccc} \vec{a} + 2\vec{b} - \vec{c} , \vec{a} - \vec{b} , \vec{a} - \vec{b} -\vec{c} \end{array}\right] = \)