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Given A=[231420352]A = \left[ \begin{array} { c c c } 2 & 3 & - 1 \\4 & - 2 & 0 \\- 3 & - 5 & 2\end{array} \right]

Question 83

Multiple Choice

Given A=[231420352]A = \left[ \begin{array} { c c c } 2 & 3 & - 1 \\4 & - 2 & 0 \\- 3 & - 5 & 2\end{array} \right] and B=[353522742]B = \left[ \begin{array} { c c c } 3 & 5 & - 3 \\5 & 2 & 2 \\- 7 & 4 & 2\end{array} \right]
, find 3A2B3 A - 2 B


A) [2132104532]\left[ \begin{array} { c c c } 2 & 1 & 3 \\2 & 10 & - 4 \\5 & 3 & 2\end{array} \right]

B) [11331044235]\left[ \begin{array} { c c c } 1 & 1 & 3 \\3 & 10 & - 4 \\4 & 23 & 5\end{array} \right]

C) [01321045232]\left[ \begin{array} { c c c } 0 & - 1 & 3 \\2 & - 10 & 4 \\5 & - 23 & 2\end{array} \right]

D) [21301045142]\left[ \begin{array} { c c c } 2 & - 1 & - 3 \\0 & 10 & 4 \\5 & - 14 & - 2\end{array} \right]

E) none

Correct Answer:

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