Question
$D=\left[\begin{array}{r}-4 \\ 5\end{array}\right],$ and $E=\left[\begin{array}{r}-1 \\ 2\end{array}\right] .$ Find each of the following matrices,if possible.$$-C-3 B$$
Step 1
We do this by multiplying every element in matrix C by -1. If we denote matrix C as $C=\left[\begin{array}{r}a \\ b\end{array}\right]$, then the opposite of matrix C is $-C=\left[\begin{array}{r}-a \\ -b\end{array}\right]$. Show more…
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$D=\left[\begin{array}{r}-4 \\ 5\end{array}\right],$ and $E=\left[\begin{array}{r}-1 \\ 2\end{array}\right] .$ Find each of the following matrices, if possible. $$C-B$$
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