Someone plz help Describe what a geometric series is, you should include the formula in your description.

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Someone plz help
Describe what a geometric series is, you should include the formula in your description.

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Neala 4 years 2021-09-01T08:53:21+00:00 1 Answers 7 views 0

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  1. thienthanh
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    2021-09-01T08:55:11+00:00
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    Answer:

    You can take the sum of a finite number of terms of a geometric sequence. And, for reasons you’ll study in calculus, you can take the sum of an infinite geometric sequence, but only in the special circumstance that the common ratio r is between –1 and 1; that is, you have to have | r | < 1.

    this is a few formulas : Sn=a1(1−rn)1−r,r≠1,

    Example 3: Find the sum of the first 8 terms of the geometric series if a1=1 and r=2 .

    Step-by-step explanation:

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