Concept explainers
To find: Whether the sequence is arithmetic, geometric or neither, find the common difference or common ratio and also find the sum of the first fifty terms if the sequence is arithmetic or geometric.
Answer to Problem 68AYU
Therefore, the sequence is arithmetic, the common difference is
Explanation of Solution
Given information:
The series is
Calculation:
Assume
Calculate the first term.
Calculate the second term.
Calculate the difference of first and second term.
Calculate nth term.
Calculate
Calculate the difference of nth term and
Since the difference of consecutive terms is constant, the sequence is arithmetic.
Calculate the sum of first
Therefore, the sequence is arithmetic, the common difference is
Chapter 12 Solutions
Precalculus Enhanced with Graphing Utilities
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