The Fibonacci sequence is the sequence {F, }, defined by Fo = 0, F = 1, and %3D F = Fn-1 + F-2 for each n = 2, 3, 4, .... (a) Find the first ten terms of the Fibonacci sequence. (b) Use the fact that F, > n for eachn > 5 to show that 1 0< F, Fn+1 1 п(п + 1) for each n 2 5. 1 (c) Use part (b) to show that lim = 0. n¬co F, Fn+1 1 { (d) Show that is nonincreasing. F Fn+1 n=1 VI

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Sequences and Series

The Fibonacci sequence is the sequence {F, }, defined by Fo = 0, F1 = 1, and
n=0
F, = Fn-1 + Fn-2
for each n ==
2, 3, 4, ...
(a) Find the first ten terms of the Fibonacci sequence.
(b) Use the fact that F, > n for each n > 5 to show that
1
1
F, Fn+1
п(п + 1)
for each n > 5.
1
(c) Use part (b) to show that lim
= 0.
n→0 Fn Fn+1
00
1
{
}
(d) Show that
| F, Fn+1
is nonincreasing.
n=1
Transcribed Image Text:The Fibonacci sequence is the sequence {F, }, defined by Fo = 0, F1 = 1, and n=0 F, = Fn-1 + Fn-2 for each n == 2, 3, 4, ... (a) Find the first ten terms of the Fibonacci sequence. (b) Use the fact that F, > n for each n > 5 to show that 1 1 F, Fn+1 п(п + 1) for each n > 5. 1 (c) Use part (b) to show that lim = 0. n→0 Fn Fn+1 00 1 { } (d) Show that | F, Fn+1 is nonincreasing. n=1
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