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Question 1 (10 points) 1.74 Let S = {10,9,. .. ,9,10}. Describe each of the following sets as {x E S :p(a:)}, where p(.1') is some condition on .'I'. (a) A: {10,9,...,1,1,...,9,10}. (b) B={10,9,...,1,0} (c) C={5,4,...,0,1,...,7} (d) D:{10,9,...,4,6,7,...,10}