# fibonacci

• Feb 3rd 2010, 10:28 AM
1234567
fibonacci
Below is a interesting question involving fibonacci numbers, can some please help me with the problem.

Attachment 15182

• Feb 3rd 2010, 10:52 AM
1234567
Quote:

Originally Posted by 1234567
Below is a interesting question involving fibonacci numbers, can some please help me with the problem.

Attachment 15182

.
• Feb 3rd 2010, 03:26 PM
Bruno J.
Well there are many problems in there. Where do you get stuck? I can get you started but I won't do all of them.
• Feb 3rd 2010, 10:06 PM
1234567
Quote:

Originally Posted by Bruno J.
Well there are many problems in there. Where do you get stuck? I can get you started but I won't do all of them.

Thank you,

i really stuck on

Show that
|cn+1cn| = 1/FnFn+1.

Prove by induction that
Fn>=10^n/6 for all n >=4. [Hint: you may need to do the cases n = 4, . . . ,9 to start the induction, and let the inductive step go from n to n+6.]

Can you please give me tips on how to start them of thanks

• Feb 4th 2010, 01:11 PM
gdmath