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Solution
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Problem: permutations without repetition of {a, b, c, d} [ Calculator, Method and examples ]
Solution:
Your problem `->` permutations without repetition of {a, b, c, d}
`n=4,r=4,"List variables"=a,b,c,d`
Permutation without repetition :
Formula `=(n!)/((n-r)!)=(4!)/((4-4)!)=(4!)/(0!)=24`
List are (total = 24) : {a,b,c,d}, {a,b,d,c}, {a,c,b,d}, {a,c,d,b}, {a,d,b,c}, {a,d,c,b}, {b,a,c,d}, {b,a,d,c}, {b,c,a,d}, {b,c,d,a}, {b,d,a,c}, {b,d,c,a}, {c,a,b,d}, {c,a,d,b}, {c,b,a,d}, {c,b,d,a}, {c,d,a,b}, {c,d,b,a}, {d,a,b,c}, {d,a,c,b}, {d,b,a,c}, {d,b,c,a}, {d,c,a,b}, {d,c,b,a}
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Solution provided by AtoZmath.com
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