Question

Fill in the blanks. The sum of a finite geometric sequence with common ratio r ≠ 1 is given by ________.

Solution

VerifiedAnswered 2 years ago

Answered 2 years ago

Step 1

1 of 2The formula for the sum of a finite geometric sequence with a common ratio $r\neq1$ is:

$\textcolor{#c34632}{S_n=\sum_{i=1}^na_1r^{i-1}=a_1\left(\frac{1-r^n}{1-r}\right)}$

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