For which of the following functions does lim 2->0 (2) exist? -1, x < 0 1....
2. Sketch the graph of the following functions and find the values of x for which lim f(x) does not exist. b)/(x) = 1, x = 0 f(x)- 5, x=3 c) x2 x>1 2x, x> 3 d) f(x)-v e) (x)- [2x 1- sin x Discuss the continuity of the functions given in problem #2 above. Also, determine (using the limit concept) if the discontinuities of these functions are removable or nonremovable 3. Find the value of the constant k (using...
(1/x) does not exist but that lim cos(1/x) = 0 a) Prove that lim cos x-+0 (1/x) does not exist but that lim cos(1/x) = 0 a) Prove that lim cos x-+0
2. Find the limits of the following functions if they exist. Show all necessary work. If the limit is co or -00, then state this rather than that it does not exist: (2 points each) a. lim x+3 V6x-2-4 x-3 b. lim arctan(3x) x sin(x) 3. Find the average value of the function f(x) = 4x2 + 8x -1 on (-1, 3).
Let fi and f2 be functions such that lim e s f1 (2) = + and such that the limit L2 = lim a s f2 (x) exists. Which one of the following is NOT correct? O limas (f1f2)(x) = 0 if L2 = 0. limas (fi + f2)(x) = too if L2 = -0. Olim as (f1f2) (x) = too if 0 <L2 5+co. lim a s (f1f2)(x) = - it L2 = -. Which one of the following...
Question 3 0/1 pts r-2 lim Does not exist O 0 oo (which means 'does not exist but has a certain behavior O 1 O-00 (which means 'does not exist but has a certain behavior)
12) Let f(A) = x + 1 xxo 0 x=0 (ax+ 2 x>0 a) Find lim f(x). X-70 b) Find lim F(x). X70 c) Find lim f(x). 13) Let f(x) = x - x .O 12.1 x 0 a) Find lim f(x). 6) Find
6. Use the following information to answer this problem: f(-1) does not exist lim f(r)- 00 z-+-1- lim f(r)00 2-1+ f'(x) <0 for e (1, 00) f'(z)>0 for r e (-oo,-1)U (-1,1) f"(a)<o for z E (-1, 00) f" (a)>0 for z E (-00,-1) a) (6 pts) Label all of the important r-values derived from the information provided above on the number line below. Then indicate the intervals along this line where f'(r) and f"(r) are positive or negative. f"(z)...
1. Suppose that lim x) = A, lim f(x) = B, 0) = C, where A, B, C are distinct real numbers. In each of the following, fill in the corresponding box by: • Expressing the limit in terms of A, B, C if it is possible to do so using the given information; • Writing DNE if it is possible to conclude that the limit does not exist using the given information; • Putting a X. otherwise. No explanation...
Use the graphs to identify the values of c for which lim f(x) does not exist. (Enter your answers as a comma-separated list.) 5 4 3 1 X 1 2 3 4 5 -5 -4 -3 -2 -1 -1 -2h (b) 21 -6 -2 Consider the following function and graph. f(x) = 8 + -10-8-6-4-2 2 4 6 8 10 -2 Determine whether f(x) approaches oor - as x approaches 2 from the left and from the right. (a) lim...
Write DNE if the limit does not exist at a point. 1. lim g(x) = -1 Help on limits. 2. lim g(x) = 3 3. limg(x) = 0 M 4. lim g(x) = -4 5. g(1) = 2