Let S be the set of all strings of 0's and 1's of length 4, and let A and B be the following subsets of S: A = {1011, 0101, 1110, 1010}and B = {0100, 1001, 1010, 0010}.Find each of the following. (Enter your answers in set-roster notation.) (a) A ∩ B (b) A ∪ B (c) A − B (d) B − A

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