Question

calcule 6,3 \ c4,1 + c5,4+ c11,10 isso e combinaçao simple por favor me ajudem

Answer 1

[ Cn , p = n! / p! ( n! - p! ) ]

C6 , 3 = 6! / 3! ( 6! - 3! ) = C6 , 3 = 6! / 3! . 3! = [ C6 , 3 = 20 ]

C4 , 1 = 4! / 1! ( 4! - 1! ) = C4 , 1 = 4! / 1! . 3! = [ C4 , 1 =   4 ]

C5 , 4 = 5! / 4! ( 5! - 4! ) = C5 , 4 = 5! / 4! . 1! = [ C5 , 4 =   5 ]

C11 , 1 = 11! / 1! ( 11! -1 ) = C11 , 1 = 11! / 1! . 10! = [ C11 , 1 = 11]

C6 , 3 / C4 , 1 + C5 , 4 + C11 , 1
20 / 4 +  + 11
20 / 20 = 1

:)