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(3) Prove that the sequence fn (x(max10,z - n))2 does not converge uniformly on IR, but converges uniformly on compact subsets of R
(3) Prove that the sequence fn (x(max10,z - n))2 does not converge uniformly on IR, but converges uniformly on compact subsets of R
Topic: CONVERGENCE
2.1.3 Let {an} be a sequence. Prove that if the sequence {\anſ} converges to 0, then {an} also converges to 0.
Prove that a sequence of random variables X1, X2, ... converges in
probability to a constant μ if and only if it also converges in
distribution to μ.
5. Prove that a sequence of random variables X1, X2,... converges in probability to a constant p if and only if it also converges in distribution to u.
7. For each of the following, prove that the sequence {a,) converges and find the limit. 2. Qn+1 = (2a, + 5). a, = 2 b. a -1 = V2an, a, = 3 *c. Qn+1 = V2a, + 3. a, - 1 d. 2n+1 = V2a, + 3, a, = 4
3. Show that the sequence of functions 72 k23k defined on , l converges uniformly to some f.
Exercise 3. Suppose that |2 < 2. Prove that the series converges absolutely.
3) Let (an)2- be a sequence of real numbers such that lim inf lanl 0. Prove that there exists a subsequence (mi)2-1 such that Σ . an, converges に1
Problem 3. Prove or give a counter example 1. If an converges to a real limit then limn700 (m)" = 0. 2. If an is a positive sequence satisfying limn+ ()" = 0 then it con- verges.
0. l-18 SCALCET8 11.1.507.XP.MI. Determine whether the sequence converges or diverges. If it converges, find the limit. (If an answer does not exist, enter DNE.) 2n+2 5n lim an
Tamo . Suppose that a sequence of functions fn converges pointwise to a function f on a set E, but there exists a sequence of points In E E such that \fn(2n) – f(2n) > for some strictly positive l. Then fn does not converge uniformly to f on E. (You don't need to prove this here, but it should be clear why this is true.) Now let nar2 fn(L) = 2 +n323 Show that fn converges pointwise on [0,0]...