
2. (6 points) (a) (3 points) The following recursively defined sequence is similar to the Fibonacci...
2. (6 points) (a) (3 points) The following recursively defined sequence is sin Sequence: ai = 0, Az = a= 1, and an+1 = an - 3an-1 + an-2 for n ? 3. Calculate the 4th, 5th, and 6th terms of this sequence.
Given the sequence an defined recursively as follows: an 3an-1+2 for n 2 1 Al Terms of a Sequence (5 marks) Calculate ai , аг, аз, а4, а5 Keep your intermediate answers as you will need them in the next question. A2 Iteration (5 marks) Using iteration, solve the recurrence relation when n21 (i.e. find an analytic formula for an). Simplify your answer as much as possible, showing your work and quoting any formula or rule that you use. In...
(10 points) Find the 1st through 4th terms of the recursively-defined sequence an = an-1 + 1; a1 = -1 Separate terms by commas, in order:
2. The Fibonacci numbers are defined recursively as follows: fo = 0, fi = 1 and fn fn-l fn-2 for all n > 2. Prove that for all non-negative integers n: fnfn+2= (fn+1)2 - (-1)"
2. The Fibonacci numbers are defined recursively as follows: fo = 0, fi = 1 and fn fn-l fn-2 for all n > 2. Prove that for all non-negative integers n: fnfn+2= (fn+1)2 - (-1)"
Fibonacci sequence: Cauchy-Binet formula Let (Fn)n be the Fibo- nacci sequence defined recursively by F1 = F2 = 1 and Fn = Fn−1 + Fn−2In this way it all reduces to computing a high power of a 2 × 2 matrix. How can you compute an arbitrary power of a matrix and can you come up with the Cauchy-Binet formula from here?
3. The sequence (Fn) of Fibonacci numbers is defined by the recursive relation Fn+2 Fn+1+ F for all n E N and with Fi = F2= 1. to find a recursive relation for the sequence of ratios (a) Use the recursive relation for (F) Fn+ Fn an Hint: Divide by Fn+1 N (b) Show by induction that an 1 for all n (c) Given that the limit l = lim,0 an exists (so you do not need to prove that...
14. (15 points) Recall that Fibonacci numbers are defined recursively as follows: fnIn-1 +In-2 (for n 2 2), with fo 0, fi-1 Show using induction that fi +f 2.+fn In+2-1. Make sure to indicate whether you are using strong or weak induction, and show all work. Any proof that does not use induction wil ree or no credit.
1·2 points Find the first six terms of the following recursively defined sequence: tk(k-1)tk-1 +2tk-2 for k 2 2 1.t1. 2. [3 points] Consider a sequence co, c, C2, . . . defined recursively ck = 3Q-1 + 1 for all k 2 1 and co 2. Use iteration to guess an explicit formula for the sequence 3. [3 points] Use mathematical induction to verify the correctness of the formula you obtained in Problem 2 4. [2 points] A certain...
3. Consider the sequence (x,) with x, =3 defined recursively by the ruleX 4-x Explore the sequence with your calculator: a. 1 STO X STO 3-X ENTER, ENTER ENTER ENTER. 4-x Apparently the sequence diverges / converges to b. State the MONOTONE CONVERGENCE THEOREM: c. Use induction to show that (x) is decreasing for all n when x, 3 d. Use induction to show that (x.) is bounded below by 0 when x,- 3. e. Conclude from (b-d): d. To...
(5) Fibonacci sequences in groups. The Fibonacci numbers F, are defined recursively by Fo = 0, Fi-1, and Fn Fn-1 + Fn-2 for n > 2. The definition of this sequence only depends on a binary operation. Since every group comes with a binary operation, we can define Fibonacc type sequences in any group. Let G be a group, and define the sequence (n in G as follows: Let ao, ai be elements of G, and define fo-ao fa and...