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Find an explicit formula for the geometric sequence -40,-20,-10-.. Note: the first term should be c(1). c(n)= ?

Question

Find an explicit formula for the geometric sequence -40,-20,-10……

Note: the first term should be c(1).

c(n)= ?

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Mathematics
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2021-07-22T17:04:28+00:00
2021-07-22T17:04:28+00:00 1 Answers
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## Answers ( )

Answer:The explicit formula for the geometric sequence is .

Step-by-step explanation:By definition of geometric sequence, we should use the following expression:

,

(1)Where:

– First term.

– Geometric rate.

– Position of the element within the series.

If we know that and , then the explicit formula for the geometric sequence is:

The explicit formula for the geometric sequence is .