Topic: Arithmetic Sequence a1 = 18, d= -5, n = 12 Find a12 and the sum of the first 12 terms.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section: Chapter Questions
Problem 6RE: Is the sequence 2,4,8,16,... arithmetic? If so, find the common difference.
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Topic: Arithmetic Sequence

a1 = 18, d= -5, n = 12

Find a12 and the sum of the first 12 terms.

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