How do you evaluate 6C4?

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Answer 1 · 2016-10-15T11:10:42

# 6C_4 =15#

# n C_r = (n!)/((n-r)!*r!) :. 6C_4 =(6!)/((6-4)!*4!)=(6*5*4*3*2*1)/(2*1*4*3*2*1)=15 [Ans]#

Answer 2 · 2017-12-09T03:34:22

This question requires a basic understanding of how to manipulate factorials.

Answer:

#""^6 C_4=15#

Please refer to my video below :)