We know that for all real number x .
So the sequence is a bounded sequence of real number.
By Bolzano-weierstrass theorem every bounded sequence have a convergent subsequence so the sequence has a convergent subsequence.
Answer : has a convergent subsequence in [-1 , 1] .
Now the sequence do not have a constant subsequence as the function is periodic with period so the terms of the sequence will repeat if that is m-n is a multiple of which is not possible as m,n are integers.
QUESTION 10 The sequence sin(1), sin(2), sin(3), sin(4), ..... O has a constant subsequence in (-1,1]...
2. (10 Points) Give the following examples (the roofs are not required). (a) A bounded sequence in LP[o 0, 1],1 S p S oo, that has no strongly convergent subsequence (b) A bounded sequence in L'(0, 1] that has no weakly convergent subsequence. (c) A weakly convergent sequence in L [0,1] that has no strongly convergent subsequence. 2. (10 Points) Give the following examples (the roofs are not required). (a) A bounded sequence in LP[o 0, 1],1 S p S...
4. Consider the sequence {z,.) such that z1-0, z2-1 and æn-telths,Yn (i) Show that (n) is convergent by showing that the subsequence of odd-indexed terms is monotonic increasing and subsequence of even-indexed terms is monotonic decreasing (ii) Find the limit of {%) (Hint: Consider x,-h-i) 4. Consider the sequence {z,.) such that z1-0, z2-1 and æn-telths,Yn (i) Show that (n) is convergent by showing that the subsequence of odd-indexed terms is monotonic increasing and subsequence of even-indexed terms is monotonic...
In questions 1-8, find the limit of the sequence. sin n cos n 2. 37 /n sin n 3. 4. cos rn 5. /n sin n o cos n n! 9. If c is a positive real number and lan) is a sequence such that for all integer n > 0, prove that limn →00 (an)/n-0. 10. If a > 0, prove that limn+ (sin n)/n 0 Theorem 6.9 Suppose that the sequence lan) is monotonic. Then ta, only if...
real analysis Find the limit of the sequence as n to or indicate that it does not converge en2 0 (0,0,1) O Does not converge 0 (0, 1, 7) 0 (0,0,0) Is it true that any unbounded sequence in RN cannot have a convergent subsequence? Please, read the possible answers carefully. 0 Yes, because any sequence in RN is a sequence of vectors, and convergence for vectors is not defined. o Yes, it is true: any unbounded sequence cannot have...
Question 1 please 1. True or false: (15 pts) {(-1)" tan (TC/2-3/n} is oscillating. (b) 1/2-1/4+1/6-1/8+1/10-..... converges conditionally. A convergent sequence is always Cauchy. {1/n) is a Cauchy sequence. (1-3)-(1-31/2)+(1-313)-(1-314 )+.....diverges. 2. Find limit sup and limit inf of the following sequences: (10 pts) (a){c+4) sin ng (b) {(1+m+)"} Limsup= limsup= Lmitinf= liminf= 3. Prove that either the following sequence has a limit or not. (20 pts) (a) 2n (b) n2+4n+2 n+6vn n-1
6. Give an example of a non-constant sequence that satisfies the given conditions or explain why such a sequence does not exist: (1) {an} is bounded above but not convergent. (2) {an} is neither decreasing nor increasing but still converges. (3) {an} is bounded but divergent. (4) {an} is unbounded but convergent. (5) {an} is increasing and converges to 2.
a and an+1= 5an +3 for any natural (Total 5+10= 15 pts) 4. For a positive real number a, consider the sequence (an)1 defined by a1 number n. Answer each queestion. (a) Without using e-N argument, show that the sequence (an)1 converges. (5 pts) (b) Using definition of limits, i.e., using e-N argument, show that the sequence (an)1 is a convergent sequence. If it converges, determine also the limit (10 pts) a and an+1= 5an +3 for any natural (Total...
(Same-number subsequence) Write an O(n) program that prompts the user to enter a sequence of integers in one line and finds longest subsequence with the same number. Sample Run Enter a series of numbers: 2 4 4 8 8 8 8 2 4 4 0 The longest same number sequence starts at index 3 with 4 values of 8. In Python.
please do both question clearly,thank you! Consider the sequence of real numbers 13. 1 1 2' 1 2 + 2 + 1 2 + Show that this sequence is convergent and find its limit by first showing that the two sequences of alternate terms are monotonic and finding their limits. Prove that any sequence in hence we may suppose that each subsequence has a least term.) (Note that this result and the theorem on the convergence of bounded monotonic sequences...
All of question 2 please 1. True or false: (15 pts) {(-1)" tan (TC/2-3/n} is oscillating. (b) 1/2-1/4+1/6-1/8+1/10-..... converges conditionally. A convergent sequence is always Cauchy. {1/n) is a Cauchy sequence. (1-3)-(1-31/2)+(1-313)-(1-314 )+.....diverges. 2. Find limit sup and limit inf of the following sequences: (10 pts) (a){c+4) sin ng (b) {(1+m+)"} Limsup= limsup= Lmitinf= liminf= 3. Prove that either the following sequence has a limit or not. (20 pts) (a) 2n (b) n2+4n+2 n+6vn n-1