(1) Let U = {1, 2, 3, ... , 9, 10} be the universal set. Let A = {x € U : x = 1 (mod 3)} and B = {x € U : x = 2 (mod 5)}. Identify the following sets and compute their cardinality. (a) A (b) ANB (c) AUB (d) А — В (е) Ах В %3D -

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