Let f be a real-valued function with domain R defined by f(x) = x2.  Define a sequence (s1, s2, s3, ...) by s1 = b and sj = f(sj-1), for j = 1,2,3,4...   a) assume that b=1, and find a formula for sn. b) assume that b=3, and find a formula for sn. c) prove the conjecture in part (b).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.1: Infinite Sequences And Summation Notation
Problem 74E
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Let f be a real-valued function with domain defined by f(x) = x2

Define a sequence (s1, s2, s3, ...) by s1 = b and s= f(sj-1), for j = 1,2,3,4...

 

a) assume that b=1, and find a formula for sn.

b) assume that b=3, and find a formula for sn.

c) prove the conjecture in part (b).

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