a) Use the formula found in Example 4 for fnthe nth
Chapter 11, Problem 41E(choose chapter or problem)
a) Use the formula found in Example 4 for fn, the \(n\)th Fibonacci number, to show that \(f n\) is the integer closest to
\(\frac{1}{\sqrt{5}}\left(\frac{1+\sqrt{5}}{2}\right)^{n}\)
b) Determine for which \(\mathrm{n}\) fn is greater than
\(\frac{1}{\sqrt{5}}\left(\frac{1+\sqrt{5}}{2}\right)^{n}\)
and for which \(n\) fn is less than
\(\frac{1}{\sqrt{5}}\left(\frac{1+\sqrt{5}}{2}\right)^{n}\)
Equation Transcription:
Text Transcription:
1/square root 5(1+square root 5/2)^n
n
fn
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