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3 years ago

Evaluate 6C3. 18 20 60 120

Mathematics

1 answer:

melomori [17]3 years ago

4 0

Answer:

Step-by-step explanation:

$nC_{r}=\frac{n!}{r!(n-r)!}\\\\6C_{3}=\frac{6!}{3!(6-3)!}\\\\=\frac{6!}{3!(6-3)!}==\frac{6!}{3!3!}\\=\frac{6*5*4*3!}{3!3!}\\\\=\frac{6*5*4}{3!}\\\\=\frac{6*5*4}{3*2*1}\\\\ =5*4=20$

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OverLord2011 [107]

Answer:

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Step-by-step explanation:

Given that,

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