Let A = [ 3 -12 ; -5 20 ]. Construct a 2x2 matrix B such that AB is the zero matrix. Use two different nonzero columns for B. B=
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Let's start with the first two equations: -12b_{11} - 5b_{21} = 0 20b_{11} + 8b_{21} = 0 We can multiply the first equation by 2 and add it to the second equation: -24b_{11} - 10b_{21} = 0 20b_{11} + 8b_{21} = 0 ---------------------- Show more…
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