Concept explainers
the sum of the finite arithmetic sequence.
Answer to Problem 56E
The sum of the arithmetic sequence is 57
Explanation of Solution
Given information:
Finding the Sum:
Formula used:
Calculation:
The objective is to find the sum of the following arithmetic sequence:
The sum of a finite arithmetic sequence with n terms is
Notice that,
Thus, the common difference of the sequence is -3 .
The sum has 6 terms.
Thus,
The first term is
Substituting the values of
Therefore, the sum of the arithmetic sequence is 57
Conclusion:
The sum of the arithmetic sequence is 57
Chapter 8 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning