senituliii
26.05.2021 •
Mathematics
Write an explicit formula for an, the nth term of the sequence 2 -8 32
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Ответ:
9514 1404 393
an = 2(-4)^(n-1)
Step-by-step explanation:
The general form of the explicit formula for a geometric series with first term a1 and common ratio r is ...
an = a1·r^(n-1)
Your sequence has a1=2 and r=-8/2 = -4. So, the explicit formula is ...
an = 2(-4)^(n-1)
Ответ:
I looked it up