Let {an}-o be a sequence such that ao = 2, a1 = 4, an = 4an–1 – 3an-2 for n > 2.
Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter14: Sequences And Mathematical Induction
Section14.CT: Test
Problem 1CT
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Let {an}∞ n=0 be a sequence such that a0 = 2, a1 = 4, an = 4an−1 − 3an−2 for n ≥ 2.
(a) Calculate a2, a3, a4, a5 and then guess a possible direct formula for an, n ≥ 0.
(b) Use strong mathematical induction to prove your formula.
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