hitunglah hasil kombinasi berikut! A) C(6,2) B) C(8,3)XC(6,2)

Permutasi & Kombinasi
Matematika X

(A)
₆C₂ = [6!] / [2! 4!]
= [6.5.4!] / [2 x 4!]
= [6 x 5] / 2
= 15

(B)
₈C₃ = [8!] / [3! 5!]
= [8.7.6.5!] / [(3.2) x 5!]
= 8 x 7
= 56

₈C₃ x ₆C₂ = 15 x 56 = 840