The Lucas numbers L(n) have almost the same definition as the Fibonacci numbers: If n =...
The Lucas Numbers are a sequence very similar to the Fibonacci sequence discussed in class, the only difference being that the Lucas Numbers start with 10-2 L,-1 as opposed to Fibonacci's Fo = 0 and F1 = 1, concretely, they are defined by Lo = 2, L,-1 and Ln-Ln-l + Ln-2 for n > 1 Write a Python function called first D_digit Lucas that takes an integer argument D less than 30 and returns the first D-digit Lucas number. For...
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.
2) In class we showed a Matrix algorithm for Fibonacci numbers: 1 112 1 0 n+1 F (Note: No credit for an induction proof that this is true. I'm not asking that.) a) What is the running time for this algorithm? (3 pts.) b) Prove it. (9 pts.)
8. This exercise is a continuation of the previous one. The Lucas numbers Ln are defined by the same relationship as the Fibonacci numbers. Ln+2 = Ln+1 + Ln. However, we begin with Lo = 2 and L-1, which leads to the sequence 2, 1,3,4,7,11,... 「Ln+1 Ln As before, form the vector as a linear combination of vi and v2, eigenvectors of A. Explain why so that a. Xn+1 = Axn. Express X0 b. -(부).. (뷔 Explain why Ln is...
The Fibonacci numbers are defined as follows, f1=1, f2=1 and fn+2=fn+fn+1 whenever n>= 1. (a) Characterize the set of integers n for which fn is even and prove your answer using induction (b) Please do b as well. The Fibonacci numbers are defined as follows: fi -1, f21, and fn+2 nfn+1 whenever n 21. (a) Characterize the set of integers n for which fn is even and prove your answer using induction. (b) Use induction to prove that Σ. 1...
Therom 1.8.2 n choose k = (n choose n-k) n choose k = (n-1 choose K) + (n-1 choose K-1) 2n = summation of (n choose i ) please use the induction method (a) (10 pts) Show that the following equality holds: n +1 + 2 Hint: If you proceed by induction, you might want to use Theorem 1.8.2. If you search for a combinatorial proof, consider the set X - (i,j, k): 0 S i,j< k< n) (b) (10...
Exercise 6. Let En be the sequence of Fibonacci numbers: Fo = 0, F1 = 1, and Fn+2 = Fn+1 + Fn for all natural numbers n. For example, F2 = Fi + Fo=1+0=1 and F3 = F2 + F1 = 1+1 = 2. Prove that Fn = Fla" – BM) for all natural numbers n, where 1 + a=1+ V5 B-1-15 =- 2 Hint: Use strong induction. Notice that a +1 = a and +1 = B2!
Recall from class that the Fibonacci numbers are defined as follows: fo = 0,fi-1 and for all n fn-n-1+fn-2- 2, (a) Let nEN,n 24. Prove that when we divide In by f-1, the quotient is 1 and the remainder is fn-2 (b) Prove by induction/recursion that the Euclidean Algorithm takes n-2 iterations to calculate gcd(fn,fn-1) for n 2 3. Check your answer for Question 1 against this. Recall from class that the Fibonacci numbers are defined as follows: fo =...
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...
In the following problem, we will work through a proof of an important theorem of arithmetic. Your job will be to read the proof carefully and answer some questions about the argument. Theorem (The Division Algorithm). For any integer n ≥ 0, and for any positive integer m, there exist integers d and r such that n = dm + r and 0 ≤ r < m. Proof: (By strong induction on the variable n.) Let m be an arbitrary...