There are three sets: A = { 1, 2, 3, 4 } B = { 3, 5, 6, 7 } C = { 1, 3, 7, 8 } Find: (A⋃ B)⋂ C
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Hello, Just write (A⋃ B), which will be composed of all elements of A and all elements of B. x € A⋃B means that x is in A OR in B (non-exclusive or, so it can be in A and B) Then, (A⋃ B)⋂ C will be any elements which are in (A⋃ B) AND in C.
Originally Posted by dreamer1963 There are three sets: A = { 1, 2, 3, 4 } B = { 3, 5, 6, 7 } C = { 1, 3, 7, 8 } Find: (A⋃ B)⋂ C I like doing these problems step by step. Lets first find the elements of Now let's find the elements which appear in both and
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