In Exercises 3942, find (a) A, (b) B, (c) AB, and (d) AB. What do you notice about AB?
Chapter 8, Problem 40(choose chapter or problem)
The Determinant of a Matrix Product In Exercises 39-42, find (a) |A|, (b) |B|, (c) AB, and (d) |AB|. What do you notice about |AB|?
\(A=\left[\begin{array}{rr}4&0\\ 3&-2\end{array}\right],\quad\ B=\left[\begin{array}{ll}-1&1\\ -2&2\end{array}\right]\)
Text Transcription:
A = [_3 -2 ^4 0], B = [_-2 2 ^-1 1]
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