Title
In: Mathematics
Work through it backwards…
5! / 5 = 4!
4! / 4 = 3!
3! / 3 = 2!
2! / 2 = 1!
1! / 1 = 0!
0! / 0 … whoops there’s no -1 factorial.
why 0! = 1. Idk it seems counterintuitive.
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Title
In: Mathematics
Work through it backwards…
5! / 5 = 4!
4! / 4 = 3!
3! / 3 = 2!
2! / 2 = 1!
1! / 1 = 0!
0! / 0 … whoops there’s no -1 factorial.
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