DivineMemes420
30.05.2021 •
Mathematics
If p (n,3)=1320what is n
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Ответ:
n=12
Step-by-step explanation:
lol we meet again
just use the permutation formula for this one.
n!/(n-3)!=1320
[n×(n-1)×(n-2)×(n-3)!]/(n-3)!=1320
n(n-1)(n-2)=1320
(n²-n)(n-2)=1320
n³-3n²+2n-1320=0
n=12
Ответ:
6 is a magnitude of 6 away from the zero (to the right)
since 9 > 6, -9 is the farthest from zero