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Evaluate 6C3. 18 20 60 120

Evaluate 6C3. 18 20 60 120
186k views
1 vote
Evaluate 6C3.

18
20
60
120

User JP Ventura
by
8.0k points

2 Answers

0 votes

Answer:

20

Explanation:

I just did this on Odyssey

User Jrouquie
by
8.9k points
3 votes

Answer:

Explanation:


nC_(r)=(n!)/(r!(n-r)!)\\\\6C_(3)=(6!)/(3!(6-3)!)\\\\=(6!)/(3!(6-3)!)==(6!)/(3!3!)\\=(6*5*4*3!)/(3!3!)\\\\=(6*5*4)/(3!)\\\\=(6*5*4)/(3*2*1)\\\\ =5*4=20

User Eldewall
by
6.7k points
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