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There are 270 people at a meeting. They each give a Valentine's Day card to everyone else. How many cards were given?Combination; 18,157Permutation; 72,63036,315Combination; 52,690
There are 270 people at a meeting. They each give a Valentine's Day card to everyone else. How many cards were given?Combination; 18,157Permutation; 72,63036,315Combination; 52,690
There are 270 people at a meeting. They each give a Valentine's Day card to everyone else. How many cards were given?Combination; 18,157Permutation; 72,63036,315Combination; 52,690
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Differential Geometry Of Curves And Surfaces
Authors: Thomas F Banchoff, Stephen T Lovett
3rd Edition
1000597725, 9781000597721
