a) Let an be an arithmetic sequence. If as 94, a6 = 85, find the common difference d and the formula for an

Calculus: Early Transcendentals
8th Edition
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Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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a) Let an be an arithmetic sequence. If a3 = 94, a6 = 85, find the common difference d and the formula for an
640
10
5
160 40
b) Consider the geometric series + +
243 81 27
+
+ .... Find the exact sum of the geometric series if possible. Otherwise, state the reason why the series is divergent.
9
6
+
Transcribed Image Text:a) Let an be an arithmetic sequence. If a3 = 94, a6 = 85, find the common difference d and the formula for an 640 10 5 160 40 b) Consider the geometric series + + 243 81 27 + + .... Find the exact sum of the geometric series if possible. Otherwise, state the reason why the series is divergent. 9 6 +
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