Use the definition of an r-permutation, or the product rule to determine the number of trifectas possible in a race with 9 horses. A trifecta is the correct ordering of the first three horses to finish the race, i.e. an individual correctly picks the winner of the race, the second place finisher (place), and the third place finisher (show). The result may be loft in nroduct notation ie a.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Use the definition of an r-permutation, or the product rule to determine the
number of trifectas possible in a race with 9 horses. A trifecta is the correct ordering of
the first three horses to finish the race, i.e. an individual correctly picks the winner of
the race, the second place finisher (place), and the third place finisher (show). The result
may be left in product notation, i.e. aj · Az ·…·.
Transcribed Image Text:Use the definition of an r-permutation, or the product rule to determine the number of trifectas possible in a race with 9 horses. A trifecta is the correct ordering of the first three horses to finish the race, i.e. an individual correctly picks the winner of the race, the second place finisher (place), and the third place finisher (show). The result may be left in product notation, i.e. aj · Az ·…·.
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