Mathematics: There are students in a small class. to make a team, the names of of them will be drawn from a hat. how many different teams of students are possible?

There are students in a small class. to make a

Ответ:

toricepeda82

30.12.2021

$e.g\\a\ small\ class\ has\ 15\ students\ and\ we\ will\ choose\ 3-person\ team\\\\the\ number\ of\ possible\ teams\ is\\\\ {n \choose k}={15 \choose 3}= \frac{15!}{3!\cdot(15-3)!}= \frac{12!\cdot13\cdot14\cdot15}{2\cdot3\cdot12!} = \frac{13\cdot2\cdot7\cdot3\cdot5}{2\cdot3} = 13\cdot7\cdot5=455$

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Ответ:

kenzierosa

16.07.2022

Mathematics

Okay

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There are students in a small class. to make a team, the names of of them will be drawn from a hat. how many different teams of students are possible?

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