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natima [27]
3 years ago
11

Brainliest and 20 points!!!!

Mathematics
1 answer:
denis23 [38]3 years ago
6 0

Answer:

A

Step-by-step explanation:

The n th term ( explicit formula) for a geometric sequence is

f(n) = a(r)^{n-1}

where a is the first term and r the common ratio

Here a = 2 and r = - 8 ÷ 2 = - 4, thus

f(n) = 2(-4)^{n-1}

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