Perform Scalar Multiplication
-Let $\mathrm { A } = \left[ \begin{array} { l l } 3 & 3 \ 2 & 4 \end{array} \right]$ and $\mathrm { B } = \left[ \begin{array} { r r } 0 & 4 \ - 1 & 6 \end{array} \right]$. Find $3 \mathrm {~A} + \mathrm { B }$.
A)
$\left[ \begin{array} { l l } 9 & 13 \ 5 & 18 \end{array} \right]$
B)
$\left[ \begin{array} { l l } 9 & 21 \ 3 & 30 \end{array} \right]$
C)
$\left[ \begin{array} { l l } 9 & 13 \ 1 & 10 \end{array} \right]$
D)
$\left[ \begin{array} { c c } 9 & 7 \ 5 & 10 \end{array} \right]$

Question

Quizplus · Accepted Answer

To find $3 \mathrm {~A} + \mathrm { B }$, first multiply each element in matrix A by 3, resulting in $\left[ \begin{array} { l l } 9 & 9 \ 6 & 12 \end{array} \right]$, and then add the corresponding elements from matrix B. The resulting matrix is $\left[ \begin{array} { l l } 9 & 13 \ 5 & 18 \end{array} \right]$.

Perform Scalar Multiplication -Let A=[3324]\mathrm { A } = \left[ \begin{array} { l l } 3 & 3 \\ 2 & 4 \end{array} \right]A=[32​34​]

Perform Scalar Multiplication
-Let $\mathrm { A } = \left[ \begin{array} { l l } 3 & 3 \\ 2 & 4 \end{array} \right]$