Words

How many 3 letter "words" are possible using 14 letters of the alphabet?

a) n - without repetition
b) m - with repetition

Result

n =  2184
m =  2744

Solution:

n=141312=2184n = 14 \cdot 13 \cdot 12 = 2184
m=143=2744m = 14^3 = 2744



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