2 Answers

Fpopic · Answer 1 · 2020-01-10T13:52:29+0000

For this case, we must subtract the given matrices, for this we subtract term to term.

So, we have:

Equal signs are added and the same sign equals:

$\left[\begin{array}{ccc}-2-2\\-2-1\\1-1\end{array}\right]$ =

$\left[\begin{array}{ccc}-4\\-3\\0\end{array}\right]$

ANswer:

$\left[\begin{array}{ccc}-4\\-3\\0\end{array}\right]$

Dajee · Answer 2 · 2020-01-15T00:05:58+0000

Answer:

$\left[\begin{array}{ccc}-4\\-3\\0\end{array}\right]$

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 .

$\left[\begin{array}{ccc}-2\\-2\\1\end{array}\right]$ -
$\left[\begin{array}{ccc}-2\\1\\1\end{array}\right]$

To subtract two matrices, just subtract the corresponding entries

=
$\left[\begin{array}{ccc}-2-2\\-2-1\\1-1\end{array}\right]$

=
$\left[\begin{array}{ccc}-4\\-3\\0\end{array}\right]$

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