4. Suppose A = {a, b, c, d} and B = {1, 2}. Write out the following sets (а) А х В (b) AUB (с) A ПВ (d) В - А (е) В хА
4. Suppose A = {a, b, c, d} and B = {1, 2}. Write out the following sets (а) А х В (b) AUB (с) A ПВ (d) В - А (е) В хА
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 36SE: The number of 5-element subsets from a set containing n elements is equal to the number of 6-element...
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Transcribed Image Text:4. Suppose A = {a, b, c, d} and B = {1, 2}.
Write out the following sets
(а) А х В
(b) AUB
(с) А ПВ
(d) В - А
(е) В х А
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