a. In a geometric progression the sixth term is 8 times the third term and the sum of the seventh and eighth terms is 192. Determine (a) the common ratio, (b) the first term. b. An arithmetic series has first term ln 2 and common difference ln 4. Show that the sum Sn of the first n terms is n2 ln 2
a. In a geometric progression the sixth term is 8 times the third term and the sum of the seventh and eighth terms is 192. Determine (a) the common ratio, (b) the first term. b. An arithmetic series has first term ln 2 and common difference ln 4. Show that the sum Sn of the first n terms is n2 ln 2
Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter13: Sequences And Series
Section13.CR: Chapter Review
Problem 6CC
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a. In a geometric progression the sixth term is 8 times the third term and the sum
of the seventh and eighth terms is 192. Determine (a) the common ratio, (b) the
first term.
b. An arithmetic series has first term ln 2 and common difference ln 4. Show that
the sum Sn of the first n terms is n2
ln 2.
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