C(13, 6)
= 13!/(6!7!)
= 1716
Evaluate C(13, 6).
3 answers
13!/(7! 6!) =
13*12*11*10*9*8/(6*5*4*3*2) =
13*11*(12/6)*(10/5)*(9/3)*(8/(4*2)) =
13*11*2*2*3 =
(12^2 - 1)*2*2*3=
143*2*2*3=
429*4=
(430-1)*4=
1716
13*12*11*10*9*8/(6*5*4*3*2) =
13*11*(12/6)*(10/5)*(9/3)*(8/(4*2)) =
13*11*2*2*3 =
(12^2 - 1)*2*2*3=
143*2*2*3=
429*4=
(430-1)*4=
1716
most calculators have that function build in.
look for a key that looks something like
nCr
look for a key that looks something like
nCr