Question

Tentukan nilai n dari persamaan nC15 = nC11

Answer 1

Verified answer

Kombinasi

nC15 = nC11
1/15! (n - 15)! = 1/11! (n - 11)!
(n - 11)! / (n - 15)! = 15! / 11!
(n - 11)(n - 12)(n - 13)(n - 14) = 15 . 14 . 13 . 12
n - 14 = 12
n = 14 + 12
n = 26 ✔

Answer 2

N-14=12
n=14+12
n= 26

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