definition of limit to prove that lim ,-e3. 3, (a) Use the - (b) Suppose lim g(z) 0 and if(x)| |g(z)| for all z E R. Use the ε-δ definition of limit to prove that lim f(x)=0 definition of limit to prove that lim ,-e3. 3, (a) Use the - (b) Suppose lim g(z) 0 and if(x)| |g(z)| for all z E R. Use the ε-δ definition of limit to prove that lim f(x)=0
1 xe Let f(x)={? x 8. Prove that f(x) continuous only at +1. Let f(x)= $3.x xs! x >1 Using the definition prove lim f(x)=1 and lim f (x) = 3 x>17 11°
Use the definition to prove lim x +4 - X -1 2x + 1
Let f(x)={user user = { x 8. Prove the following 10 a. Prove lim f(x) = 0 b. Prove lim f(x)=1 c. Prove lim f(x) does not exist. 1-2
(a) Write down the negation of the € – 8 definition of lim f(x) = L. 2- c (b) Use above or sequential criterion of limits to show that lim"! #1. 200
Question 1 1. [5 pts] Give a complete definition of lim f(x) = -oo if... 2. [25 pts] Give an example of each of the following, or state one or more theorems which show that such an example is impossible: a. A countable collection of nonempty closed proper subsets of R whose union is open. b. A nonempty bounded subset of R with no cluster points. c. A convergent sequence with two convergent subsequences with distinct limits. d. A function...
(3) Use the definition of convergence to prove each of the following (a) 1 is not the limit of the sequence sn (-1)" (b) lim = 1/2 2n (c) Suppose that lim an = a. Prove that lim 3 . an За.
3. (10 marks) Find the limit and prove it using the definition. 4x2 + 13 lim x+ x2 + x + 1 4. (10 marks) Find the limit and prove it using the definition. 4x3 + 13 lim *40x2 + x + 1
1. Use only definition 4.2.1 (functional limit) to prove that . lim (2.rº + 3.2 + 4) = 6
3) Find the limit and prove it using definition lim 4x² + 13 x 70 x² + xt I