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Find a + B A=[1221],B=[4454]A = \left[ \begin{array} { l l } 1 & 2 \\2 & 1\end{array} \right] , B = \left[ \begin{array} { c c } - 4 & - 4 \\5 & 4\end{array} \right]

Question 36

Multiple Choice

Find A + B. A=[1221],B=[4454]A = \left[ \begin{array} { l l } 1 & 2 \\2 & 1\end{array} \right] , B = \left[ \begin{array} { c c } - 4 & - 4 \\5 & 4\end{array} \right]


A) [3275]\left[ \begin{array} { c c } - 3 & - 2 \\7 & 5\end{array} \right]
B) [1572]\left[ \begin{array} { c c } - 1 & 5 \\7 & - 2\end{array} \right]
C) [1257]\left[ \begin{array} { c c } 1 & - 2 \\5 & 7\end{array} \right]
D) [5275]\left[ \begin{array} { c c } - 5 & - 2 \\7 & 5\end{array} \right]
E) [7275]\left[ \begin{array} { c c } - 7 & - 2 \\7 & 5\end{array} \right]

Correct Answer:

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