In Exercises 129 and 130, show that B is the inverse of A. 129. A = [ 4 7 1 2], B = [ 2
Chapter 8, Problem 129(choose chapter or problem)
The Inverse of a Matrix In Exercises 129 and 130, show that B is the inverse of A.
\(A=\left[\begin{array}{rr}-4&-1\\ 7&2\end{array}\right],\quad\ B=\left[\begin{array}{rr}-2&-1\\ 7&4\end{array}\right]\)
Text Transcription:
A = [_7 2 ^-4 -1], B = [_7 4 ^-2 -1]
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