How do you find the binomial coefficient of 20C20?
1 Answer
Feb 28, 2017
Explanation:
#color(orange)"Reminder"# The binomial coefficient is.
#""^nC""_r=(n!)/(r!(n-r)!#
#rArr""^(20)C""_(20)=(20!)/(20!0!#
#color(blue)"NOTE " 0! = 1#
#rArrcancel(20!)^1/(cancel(20!)^1xx1)=1#
