C ( 7, 2 )C = ​

Penjelasan dengan langkah-langkah:

7C2 = [7!]/[(7-2)!2!]

= [7x6x5!]/[5!2×1]

= 42/2

= 21

Jawab:
21

Penjelasan dengan langkah-langkah:
⁷C₂ = 7!/(2!(7-2)!) = 7!/(2!(5!)) = 7(6)(5!)/(2!(5!)) = 42/2 = 21

[[ KLF ]]