Hoeveel verschillende
deelverzamelingen met 2 of 3 elementen bezit de verzameling {1,2,3,4,5,6,7,8,9} ? |
A. V92 . V93 |
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B. V92 + V93 | |
C. C92 . C93 | |
D. C92 + C93 | |
E. P9 : (P2.P3) |
[ 6-2793 - op net sinds 26.12.97-(E)-29.10.2023 ]
How many different subsets with 2 or 3 elements possesses the set {1,2,3,4,5,6,7,8,9} ? |
A. 9P2 . 9P3 |
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B. 9P2 + 9P3 | |
C. 9C2 . 9C3 | |
D. 9C2 + 9C3 | |
E. P9 / (P2.P3) |