Question 1161765


{{{nCr= n!/(r!(n-r)!)}}}


{{{11C5= 11!/(5!(11-5)!)}}}

{{{11C5= 11!/(5!*6!)}}}

{{{11C5= (11*10*9*8*7*6*5*4*3*2*1)/((5*4*3*2*1)*(6*5*4*3*2*1))}}}....simplify


{{{11C5= (11*10*9*8*7*cross(6*5*4*3*2*1))/((5*4*3*2*1)*cross((6*5*4*3*2*1)))}}}


{{{11C5= (11*cross(10)cross(2)*cross(9)3*cross(8)2*7)/(cross(5)*cross(4)*cross(3)*cross(2)*1)}}}...simplify

{{{11C5= 11*3*2*7}}}

{{{11C5= 462}}}