Question

...............
calcule:

C12.5

Answer 1

C12,5 = 12!/5!(12 - 5)! = 12!/5!(7)! = (12 x 11 x 10 x 9 x 8 x 7!)/5!.7!

C12,5 = (12 x 11 x 10 x 9 x 8)/(5 x 4 x 3 x 2 x 1)

C12,5 = 95040/120 = 792

Espero ter ajudado.