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Nimfa-mama [501]
2 years ago
14

Find the formula an for the nth term of the geometric sequence satisfying the following conditions: a1 = -2,

Mathematics
1 answer:
Alexeev081 [22]2 years ago
3 0

Answer:

Step-by-step explanation:

a1 = - 2

an = a1 * r^(n - 1)

a6 = -486

-486 = - 2 * r^(6-1)                      Divide by 2

243 = r^5

The largest value that r could be is 3.

4^5 = 1024

(243)^(1/5) = 3

So the general formula

an = -2*(3)^(n - 1)

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If you want to learn more about linear equations:

brainly.com/question/1884491

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