1. Recall the definition of Zs in a given ordered field. Suppose you know that for...
For Problem 3, a new definition is needed. Recall Euclid's algorithm applied to the pair, (a, b), where a, bEZ and a >b> 0: (0 ri<b) (0 r2 <r) (0r3 <r2) ri q2r2 = r2 . 93 +r3 r1 (0rn-1Tn-2) Tn 2 n-1rn-1 Tn 3 (0 <<rn <rn-1) Tn-1n+Tn Tn-2 I Tn n+1 rn-1 = We will say that the algorithm terminates in n steps if rn+1 = 0, and rk0 for all 1 k<n. 3. Use induction to prove...
Discrete Mathematics Given the following recursive definition of a sequence an do = 2 a = 9 an = 9an-1 - 20an-2, n 2 2 Prove by strong induction that a, = 4" + 5” for all n 20.
please help if you know Optimization with Quadratic Functions Could you please prove 89. Thank you so much ! Quadratic Functions A quadratic function is a mapping Q R R that is a scalar combination of single variables and pairs of variables. Thus, there are coefficients Cli,] and Ell, and a real number q, such that for X E IRn, we have The m atrix notation for C is suggestive. Indeed, C is n × n, and we take E...
all a,b,c,d 1. Suppose C is simple closed curve in the plane given by the parametric equation and recall that the outward unit normal vector n to C is given by y(t r'(t) If g is a scalar field on C with gradient Vg, we define the normal derivative Dng by and we define the Laplacian, V2g, of g by For this problem, assume D and C satisfy the hypotheses of Green's Theorem and the appropriate partial derivatives of f...
Recall that Etan E R is positive if the following two conditions hold: There exists N E Z+ such that an >0 for alln2 N. We use the notation R+to denote the set of positive real numbers: R+ = { E{a») R : Efe») is positive} 1. In class, we proved that the relation<on R, given by is an order relation. In this problem, you'll prove that R satisfies the axioms of an ordered field (a) If E(anh E{놔,Ep., }...
Let f:D + R be a function. (a) Recall the definition that f is uniformly continuous on D. (You do not need to write this down. This only serves as a hint for next parts.) (b) Use (a) and the mean value theorem to prove f(x) = e-% + sin x is uniformly continuous on (0, +00). (c) Use the negation of (a) to prove f(x) = x2 is not uniformly continuous on (0,0).
5- Recall that a set KCR is said to be compact if every open cover for K has a finite subcover 5-1) Use the above definition to prove that if A and B are two compact subsets of R then AUB is compact induction to show that a finite union of compact subsets of R is compact. 5-2) Now use 5-3) Let A be a nonempty finite subset of R. Prove that A is compact 5-4) Give an example of...
Question 2. Recall that a monoid is a set M together with a binary op- eration (r,y) →エ. y from M × M to M, and a unit element e E/, such that: . the operation is associative: for all x, y, z E M we have (z-y): z = the unit element satisfies the left identity axiom: for all r E M we have the unit element satisfies the right identity axiom: for all a EM we Let K...
4. Here is a fact about permutations: (*) nPr= n!/(n-k)!, for all k =n. Let's prove this via mathematical induction for the fixed case k-3. 2 of 3 (i) Write clearly the statement (**) we wish to prove. Be sure your statement includes the phrase "for all n" (ii) State explicitly the assumption in (*) we will thus automatically make about k-2 (ii) Now recall that to prove by induction means to show that IfmPm!/lm-k)! is true for all km...
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 =...