Answer:
[tex]\left[\begin{array}{ccc}-4\\-3\\0\end{array}\right][/tex]
Step-by-step explanation:
Given in the question two matrix, a matrix can only be added to (or subtracted from) another matrix if the two matrices have the same dimensions.
Here the dimensions are 3x1 and 3x1 .
[tex]\left[\begin{array}{ccc}-2\\-2\\1\end{array}\right][/tex]-[tex]\left[\begin{array}{ccc}-2\\1\\1\end{array}\right][/tex]
To subtract two matrices, just subtract the corresponding entries
=[tex]\left[\begin{array}{ccc}-2-2\\-2-1\\1-1\end{array}\right][/tex]
=[tex]\left[\begin{array}{ccc}-4\\-3\\0\end{array}\right][/tex]
