To show A~ B, it is sufficient to show that both are equivalent () to Note: only an actually equivalent matrix is acceptable as correct. 1 1 2 [1 2 1 Let A = 1 1 -4 1 and B -2 1 -6 5 -4 -1 1 -2 5 2 0 4 1 00 0 100 1 0 0 0 1. 0 0 0 0 10 0 1. 0 0 1 0 0 1 4 1 3 0 0 1 2 0 0 0 not enough info to answer the question none of the others 1 0 0 0 0 0 0 0 0 0 0 0 1 0 3 2 4 4 0.