Kombinasi: Perbedaan antara revisi
Konten dihapus Konten ditambahkan
Baris 174:
** sama
; <math>C^{5}_3 + C^{4}_3 + C^{3}_3 = \frac{5!}{3! (5-3)!} + \frac{4!}{3! (4-3)!} + \frac{3!}{3! (3-3)!} = \frac{5!}{3! 2!} + \frac{4!}{3! 1!} + \frac{3!}{3! 0!} = \frac{5 \cdot 4 \cdot 3!}{2 \cdot 1 \cdot 3!} + \frac{4 \cdot 3!}{1 \cdot 3!} + \frac{3!}{1 \cdot 3!} = 10 + 4 + 1 = 15 cara</math>
** berbeda
; <math>C^{5}_1 \cdot C^{4}_1 \cdot C^{3}_1 = \frac{5!}{1! (5-1)!} \cdot \frac{4!}{1! (4-1)!} \cdot \frac{3!}{1! (3-1)!} = \frac{5!}{1! 4!} \cdot \frac{4!}{1! 3!} \cdot \frac{3!}{1! 2!} = \frac{5 \cdot 4!}{1 \cdot 4!} \cdot \frac{4 \cdot 3!}{1 \cdot 3!} \cdot \frac{3 \cdot 2!}{1 \cdot 2!} = 10 + 4 + 1 = 15 cara</math>
== Lihat pula ==
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