Given $A = \left[ \begin{array} { c c c }
2 & 3 & - 1 \
4 & - 2 & 0 \
- 3 & - 5 & 2
\end{array} \right]$ and $B = \left[ \begin{array} { c c c }
3 & 5 & - 3 \
5 & 2 & 2 \
- 7 & 4 & 2
\end{array} \right]$
, find $3 A - 2 B$
A) $\left[ \begin{array} { c c c }
2 & 1 & 3 \
2 & 10 & - 4 \
5 & 3 & 2
\end{array} \right]$
B) $\left[ \begin{array} { c c c }
1 & 1 & 3 \
3 & 10 & - 4 \
4 & 23 & 5
\end{array} \right]$
C) $\left[ \begin{array} { c c c }
0 & - 1 & 3 \
2 & - 10 & 4 \
5 & - 23 & 2
\end{array} \right]$
D) $\left[ \begin{array} { c c c }
2 & - 1 & - 3 \
0 & 10 & 4 \
5 & - 14 & - 2
\end{array} \right]$
E) none

Question

Given $A = \left[ \begin{array} { c c c } 
2 & 3 & - 1 \
4 & - 2 & 0 \
- 3 & - 5 & 2
\end{array} \right]$ and $B = \left[ \begin{array} { c c c } 
3 & 5 & - 3 \
5 & 2 & 2 \
- 7 & 4 & 2
\end{array} \right]$
, find $3 A - 2 B$
A) $\left[ \begin{array} { c c c } 
2 & 1 & 3 \
2 & 10 & - 4 \
5 & 3 & 2
\end{array} \right]$
B) $\left[ \begin{array} { c c c } 
1 & 1 & 3 \
3 & 10 & - 4 \
4 & 23 & 5
\end{array} \right]$
C) $\left[ \begin{array} { c c c } 
0 & - 1 & 3 \
2 & - 10 & 4 \
5 & - 23 & 2
\end{array} \right]$
D) $\left[ \begin{array} { c c c } 
2 & - 1 & - 3 \
0 & 10 & 4 \
5 & - 14 & - 2
\end{array} \right]$
E) none

Quizplus · Accepted Answer

The Answer of Given $A = \left[ \begin{array} { c c c } 
2 & 3 & - 1 \
4 & - 2 & 0 \
- 3 & - 5 & 2
\end{array} \right]$ and $B = \left[ \begin{array} { c c c } 
3 & 5 & - 3 \
5 & 2 & 2 \
- 7 & 4 & 2
\end{array} \right]$
, find $3 A - 2 B$
A) $\left[ \begin{array} { c c c } 
2 & 1 & 3 \
2 & 10 & - 4 \
5 & 3 & 2
\end{array} \right]$
B) $\left[ \begin{array} { c c c } 
1 & 1 & 3 \
3 & 10 & - 4 \
4 & 23 & 5
\end{array} \right]$
C) $\left[ \begin{array} { c c c } 
0 & - 1 & 3 \
2 & - 10 & 4 \
5 & - 23 & 2
\end{array} \right]$
D) $\left[ \begin{array} { c c c } 
2 & - 1 & - 3 \
0 & 10 & 4 \
5 & - 14 & - 2
\end{array} \right]$
E) none

Given A=[23−14−20−3−52]A = \left[ \begin{array} { c c c } 2 & 3 & - 1 \\4 & - 2 & 0 \\- 3 & - 5 & 2\end{array} \right]A=​24−3​3−2−5​−102​​

Given $A = \left[ \begin{array} { c c c } 2 & 3 & - 1 \\4 & - 2 & 0 \\- 3 & - 5 & 2\end{array} \right]$