Matematika

Pertanyaan

1. C (n,4)= n! /n!(n-4)!
mohon di bantu ya

1 Jawaban

  • nC4 = n! / (n -4)!.4!
    = n (n-1)(n-2)(n-3)(n-4)!/ 4! (n-4)!
    = { n(n-1)(n-2)(n-3)} / 4!

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