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Combinatorics and Mathematical Induction
Matching exercise
Match the items on the right to the items on the left.
Check
OK
6! − 5!
8!/(5! × 2!)
If n!+(n − 1)! = 30, then find the value of n.
If 6!/n!= 6, then find the value of n.
600
168
4
5
6