6 0

3 - 1 5 - 6 5 - 2 9 4 21 18

R = 1 8 K = 2 1 S = 11 0 4 1 T = 9 3

4 - 3

Which matrices can be added together?

A) R and S

B) K and T

C) S and T

D) T and R

The answer turned out to be B

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