Question

De quantas maneiras podemos extrair 4 cartas de um baralho de 52 cartas?

Answer 1

Resposta:

C52,4= 52!/ 4!(52-4)!

C52,4= 52/4!48!

C52,4= 52×51×50×49×48/4×3×2×1×48

C52,4=52×51×50×49/4×3×2×1

C52,4= 6.497.400/24

C52,4= 270.725