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4. Let A = {xc : x is a multiple of 2 , x < 15), B = {x : x is a multiple of 3, x < 20),C = {x : x is a prime, x < 20}.Write each one of the sets A, B, C in Roster form.(i)(ii) Find :(a) A U B(b) A U C(c) B u c(d) A ∩ b(e) A ∩ b(f) В ∩ cplease answer this correctly and please explain the answer please |
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Answer» ,6,8,10,12,14}B= {3,6,9,12,15,18}C={2,3,5,7,11,13,17,19}(a) A U B = {2,3,4,6,8,9,10,12,14,15,18}(b) A U C = {2,3,4,5,6,7,8,10,11,12,13,14,17,19}(c) B U C = {2,3,5,6,7,9,11,12,13,15,17,18,19}(d) A ∩ B = {6,12}(E) B ∩ C = {3} |
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