(5) Let Ф, . Ž5Įx] 25 denote the evaluation homomorphism at r є z5. Find a nonzero polynomial of smallest degree which...
(5) Let Ф, : Z5[x] Zg denote the evaluation homomorphism at r Zg Find a nonzero polynomial of smallest degree which in kernel of all φ-for r 0,1,2,3,4
(5) Let Ф, : Z5[x] Zg denote the evaluation homomorphism at r Zg Find a nonzero polynomial of smallest degree which in kernel of all φ-for r 0,1,2,3,4
(i) Find a non-zero polynomial in Z3 x| which induces a zero function on Z3. f(x), g(x) R have degree n and let co, c1,... , cn be distinct elements in R. Furthermore, let (ii) Let f(c)g(c) for all i = 0,1,2,...n. g(x) Prove that f(x - where r, s E Z, 8 ± 0 and gcd(r, s) =1. Prove that if x is a root of (iii) Let f(x) . an^" E Z[x], then s divides an. aoa1
(i)...
row reduction in uncountable dimension.
Part 2. (Row-reduction in countably-infinite dimension) Let V denote the vector space of polynomials (of all degrees). Recall that V is an infinite-dimensional vector space, but it has a countable basis. Consider Te Hom(V, V) defined as T(p())5p () 10p(x - 1) 2.1. Write T as an oo x oo matrix, in the standard basis 1,X, x2, 13,... of V 2.2. Write T as an oo x oo matrix, in the basis 1, + 1,...
Topology
(b) Let S denote the subset of co consisting of sequences with rational entries of which at most finitely many are nonzero. (i) Show that S is dense in co with the sup norm. [Hint: Show that for every r E co and every ε > 0, there exists y S such that llx-yI100 < ε.j (ii) Conclude that (co, ll . 114) is separable (only quote relevant results) (iii) Show that the closed unit ball in (a-II ·...
Find T5(a): Taylor polynomial of degree 5 of the function f(x) = cos(x) at a = T5(x) = Using the Taylor Remainder Theorem, find all values of x for which this approximation is within 0.001774 of the right answer. Assume for simplicity that we limit ourselves to a < 1. nial of degree 5 of the function f(x) = cos(x) at a = 0.
5. Let R denote the set of real numbers. Which of the following subsets of R xR can be written as Ax B for appropriate subsets A, B of R? In case of a positive answer, specify the sets A and B. (a) {(z,y)12z<3, 1<y< 2}, (b) {z,)2+y= 1), (c) {(z,y)|z= 2, y R), (d) {(z,y)|z,yS 0}, (e) {(z,y) z y is an integer).
Let Coo denote the set of smooth functions, ie, functions f : R → R whose nth derivative exists, for all n. Recall that this is a vector space, where "vectors" of Coo are function:s like f(t) = sin(t) or f(t) = te, or polynomials like f(t)-t2-2, or constant functions like f(t) = 5, and more The set of smooth functions f (t) which satisfy the differential equation f"(t) +2f (t) -0 for all t, is the same as the...
Find Ts(x): Taylor polynomial of degree 5 of the function f(z) -cos( at a0 Preview Using the Taylor Remainder Theorem, find all values of x for which this approximation is within 0.002412 of the right answer Preview
Find Ts(x): Taylor polynomial of degree 5 of the function f(z) -cos( at a0 Preview Using the Taylor Remainder Theorem, find all values of x for which this approximation is within 0.002412 of the right answer Preview