To explain when does sum of an infinite geometric series exist and when it does not.
Answer to Problem 63HP
The sum of an infinite series exists if and only if the common ratio of the series is
Explanation of Solution
Given:
An infinite geometric series.
Concept Used:
Sum of first n terms of an geometric series
Calculation:
To explain when does sum of an infinite geometric series exist and when it does not.
First consider an infinite geometric series
Consider case 1: the common ratio
Here,
Thus, sum of this series
Thus, the sum of the infinite geometric series exists when the common ratio of the series is
Now, consider case 1: the common ratio
Here,
Thus, sum of this series
Thus, the sum of the infinite geometric series does not exist when the common ratio of the series is
Thus, the sum of an infinite series exists if and only if the common ratio of the series is
Chapter 10 Solutions
Glencoe Algebra 2 Student Edition C2014
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