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[327451306]\left[\begin{array}{lrr}3 & -2 & -7 \\-4 & 5 & 1 \\3 & 0 & 6\end{array}\right]

Question 8

Multiple Choice

[327451306]\left[\begin{array}{lrr}3 & -2 & -7 \\-4 & 5 & 1 \\3 & 0 & 6\end{array}\right]
-Matrices, A, B and C are given by
A=[324610595]A=\left[\begin{array}{lrr}3 & -2 & 4 \\6 & 1 & 0 \\-5 & 9 & 5\end{array}\right] B=[150847239]B=\left[\begin{array}{llr}1 & 5 & 0 \\-8 & 4 & 7 \\2 & 3 & -9\end{array}\right] C=[327451306]C=\left[\begin{array}{lrr}3 & -2 & -7 \\-4 & 5 & 1 \\3 & 0 & 6\end{array}\right]
If D = A(2B + 3C) find d23.


A) - 56
B) 19
C) - 109
D) 217
E) 324

Correct Answer:

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