6: Find the common ratio of the geometric sequence -3, -12, -48, -192, ...

asked Jan 4, 2023 121k views

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3 votes

We have that

-3 = -3 * 1 = -3 * 4^0

-12 = -3 * 4 = -3 * 4^1

-48 = -12 * 4 = -3 * 4^2

-192 = -48 *4 + -3 * 4^3

So the ratio is D. 4

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