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Where n 5 and r = 2 N!/(n-r)
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10 votes
Where n
5 and r = 2
N!/(n-r)

User Torque
by
3.5k points

1 Answer

7 votes

Answer:


(5 * 4 * 3 * 2 * 1)/(5 - 2) = (120)/(3 ) = 40

User Duncmc
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