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Mathematics, 12.02.2021 23:50 Wookas8355
Aski patrol unit has seven members available for duty, and two of them are to be sent to rescue an injured
skier. In how many ways can two of these seven members be selected?
Now suppose the order of selection is important. How many arrangements are possible in this case?
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Aski patrol unit has seven members available for duty, and two of them are to be sent to rescue an i...
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