towlesam
22.06.2019 •
Mathematics
Acompany's board of directors wants to form a committee if 2 of it's members. there are 8 members to choose from. how many different committees of 2 members could possibly be formed?
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Ответ:
Ответ:
If F(1)=5 then we have 5= a + b -2
If F(-2)=20 then 22= 4a -2b
If we simplify the second one : 11=2a -b
Then by adding these two we have 3a=18, so a=6 and b=1