21. Dadas as matrizes A= [2 1 -3 0 -1 2 1 0 -2]

B= [ -1 2 3 1 0 2 2 1 -1]

.Qual é a matriz resultante da multiplicação B•A?
A) [ -2 1 3 1 1 1 -1 0 -2]

B) [ -1 0 5 2 1 -3 -2 1 1]

C) [-2 2 -6 2 0 -1 2 1 -1]

D) [-3 2 -2 2 0 -1 1 1 -1]

E) [-2 2 -4 2 1 -2 -1 0 -1 ] ​
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