Author Topic: Logical mathematical reasoning/Razonamiento lógico matemático. x8  (Read 6076 times)

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Offline [MAF]mooman

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Re: Logical mathematical reasoning/Razonamiento lógico matemático. x8
« Reply #15 on: April 09, 2015, 02:42:07 pm »
The final challenge will be the count how many threads he made.
mooman: (110!/2!)/109!= 110!/(109!*2!) = 110/2 = 55
I do not get why you do those divisions; more than understanding n!

if you want 100*99*98*...*3*2*1 you write 100!. But if you want for example 100*99*98*...*13*12*11 you should write 100!/10!. I could've written 2 instead of 2! but I thought it was clearer lol. Because the numerators go from 3 to 110
« Last Edit: April 09, 2015, 02:43:40 pm by [MAF]mooman »
will read and answer your forum PMs when I'm less busy!