Question: 9. (a) (5) Let X = {e, a, ba} and Y = {aba, bab}. (1) List the strings in the set XY. (2) List the

9. (a) (5) Let X = {e, a, ba} and Y

9. (a) (5) Let X = {e, a, ba} and Y = {aba, bab}. (1) List the strings in the set XY. (2) List the strings of the set X* of length four or less. (b) (5) Let A = {grand, t}, B = {mother, father}. What are AB and A* B? =

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