Question: answer letter c a b C a a b b b C C d b d d a b C a. Is the * commutative?

answer letter c a b C a a b b b

answer letter c

C C d b d d a b C a. Is the

a b C a a b b b C C d b d d a b C a. Is the * commutative? b. Is the * associative? c. What is its identity

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