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Let A and B be matrices, and let x and y be vectors such that neither is a scalar multiple of the other satisfying

Ax=y, Ay=x+2y

and

Bx=x+y, By=2y.

Then there exist scalars a, b, c, and d such that

(AB)x=ax+by, (BA)x=cx+dy.


Find a, b, c, and d.

 Jul 6, 2021
 #1
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Please help on this question, I need help too :)

 Jul 7, 2021
 #2
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(a,b,c,d) = (1,2,3,1).

 Jul 8, 2021

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