Full answer: In Exercises 1320, find, if possible, (a) A + B, (b) A B, (c) 3A, and (d)

Chapter 8, Problem 20

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Operations with Matrices In Exercises 13-20, find, if possible, (a) A + B, (b) A - B, (c) 3A, and (d) 3A - 2B. Use the matrix capabilities of a graphing utility to verify your results.

\(A=\left[\begin{array}{r}3\\ 2\\ -1\end{array}\right],\quad\ \ B=\left[\begin{array}{lll}-4&6&2\end{array}\right]\)

Text Transcription:

A = [ _1  ^2 ^^3],   B = [ _-4  6  2]

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