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6 Cards in this Set
- Front
- Back
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nCk |
no order no repititions |
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(k+n-1)! /k!(n-1)! |
distribute k amounts into n places. no order yes repetitions |
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n! |
yes order, n=k, no repititions |
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n!/q1!q2!q3!... |
when n=k and there is repetition, example buttons with multiple of the same colour |
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n!/(n-k)! |
no repetitions, n!=k , yes to order |
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n^k |
yes to order, n!= k, no repetitions |
