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lilbaby1433
30.12.2020 •
Mathematics
In how many ways can the letter of word number taken two at a time
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Ответ:
15
Step-by-step explanation:
There are 6 letters in the word number
This is 6 choose 2
This is a combination
The formula is 6! / ( 2! * (6-2)! )
6! / 2! 4!
(6*5*4*3*2*1) / ( 2*1 * 4*3*2*1)
Canceling like factors
(6*5) / ( 2*1)
30/2
15
There are 15 possible ways to have 6 choose 2
Ответ:
the list with flashlights on it ;)
Step-by-step explanation: