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● B П C = {5,7}
● Aс υ ( B П C ) = {5,6,7,8,9,10}
b. ● A П B = {4,5}
● Cс = {1,2,4,6,8,10}
● ( A П B ) П Cс = {4}
c. yang no. C soalnya benar atau salah ?? . ( B ₋ C ) -> Tanda setelah huruf "B" apa ya???