Question

Calcule as combinações

A) C10^6 =
B) C8^3 =

Answer 1

a)C10,6  =10!/(10-6)!6! =10*9*8*7*6!/4!6!=10*9*8*7/4*3*2*1
=10*9*8*7/8*3=10*3*7=210



b)C8,3=8!/(8-3)!3! =8*7*6*5!/5!*6 =8*7 = 56