Title: Matrices
Course: Demonstrating STACK (v4.3.7)

For what value of \(k\) is \[ [value] [value]=[value] [value],\] i.e. \(AB=BA\)?

\(k=\)
Feedback: The product \[ AB = [value] [value] = [value]\] The product \[ BA = [value] [value] = [value]\] From this we see that \[ [value] = [value]\] and \[ [value] = [value].\] Fortunately, when solved these give the same solution \(k=[value]\).