Consider the sequence (fo, f1, f2,· . .) recursively defined by fo = 0, f1 = 1, and fn = fn-2 + fn-1 for all n = 2, 3, 4, . . .. This is known as the Fibonacci sequence. In this exercise you are invited to derive a closed formula for fn, expressing fn in terms of n, rather than recursively in terms of fn-1 and fn-2. 1. Find the terms fo, f1, . .. , f, f10 of the Fibonacci sequence. 2. In the space V of all infinite sequences of real numbers, consider the subset W of all sequences (xo, x1, x2, . ..) that satisfy the recursive equation xn = xn-2 + xn-1 for all n = 2, 3, 4, .... Note that the Fibonacci sequence belongs to W. Show that W is a subspace of V, and find a basis of W. Determine the dimension of W.
Consider the sequence (fo, f1, f2,· . .) recursively defined by fo = 0, f1 = 1, and fn = fn-2 + fn-1 for all n = 2, 3, 4, . . .. This is known as the Fibonacci sequence. In this exercise you are invited to derive a closed formula for fn, expressing fn in terms of n, rather than recursively in terms of fn-1 and fn-2. 1. Find the terms fo, f1, . .. , f, f10 of the Fibonacci sequence. 2. In the space V of all infinite sequences of real numbers, consider the subset W of all sequences (xo, x1, x2, . ..) that satisfy the recursive equation xn = xn-2 + xn-1 for all n = 2, 3, 4, .... Note that the Fibonacci sequence belongs to W. Show that W is a subspace of V, and find a basis of W. Determine the dimension of W.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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