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Fill in the blanks with elements of that set. U = {1, 3, 5, 8, 9, 10, 11, 12, 13, 15} A = {1,11, 13} B = {8,5, 10, 11, 15} A’ = { } B’ = { } A ∩ B = { } A’ ∩ B’ = { } A ∪ B = { } A’ ∪ B’ = { } (A ∩ B)’ = { } (A ∪ B)’ = { } Verify: (A ∩ B)’ = A’ u B’ , (A u B)’ = A’ ∩ B’ |
Answer» U = {1, 3, 5, 8, 9, 10, 11, 12, 13, 15} A = {1, 11, 13} B = {8, 5, 10, 11, 15} A’ = {3, 5, 8, 9, 10, 12, 15} B’ = {1, 3, 9, 12, 13} A ∩ B= {11} A’ ∩ B’ = {3, 9, 12} …(i) A ∪ B = {1, 5, 8, 10, 11, 13, 15} A’ ∪ B’ = { 1, 3, 5, 8, 9, 10, 12, 13, 15} … (ii) (A ∩ B)’ = { 1, 3, 5, 8, 9, 10, 12, 13,15} … (iii) (A ∪ B)’ = {3, 9, 12} ,..(iv) (A ∩ B)’ = A’ ∪ B’ … [From (ii) and (iii)] (A ∪ B)’ = A’ ∩ B’ … [From (i) and (iv)] |
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