(c) Give an example of an open interval I, a function h : 1 R, and a point c ε 1 such that lim h(...
Let f be defined on an open interval I containing a point a (1) Prove that if f is differentiable on I and f"(a) exists, then lim h-+0 (a 2 h2 (2) Prove that if f is continuous at a and there exist constants α and β such that the limit L := lim h2 exists, then f(a)-α and f'(a)-β. Does f"(a) exist and equal to 2L? Let f be defined on an open interval I containing a point a...
(c) Give an example of a Cl function whose differential is invertible at every point of an open set, but the function is not invertible on that set. Justify your answer. (c) Give an example of a Cl function whose differential is invertible at every point of an open set, but the function is not invertible on that set. Justify your answer.
Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing function. Do the following: (1) Show that the inverse function f -1 exists. (2) Prove that f is an open map (in the relative topology on I) (3) Prove that f1 is continuous Let R be an interval (open, closed, neither are all fine) and let f: I-> R be a continuous strictly increasing function. Do the following: (1)...
2 Precise Definition of a Limit Let fbe a function deined on some open interval that contains the number a, except possibly at a itself. Then we say that the limit of fla) as r approaches a is L, and we write lim f)-L (x) = if for every number ε > 0 there is a number δ > 0 such that 0<lx-a |<δ If(x)-L| < ε if then For the limit 2x tii illustrate Definition 2 by finding values...
Question 2.1. . (i) Give an example of a function, f: R R, that is not bounded. (ii) Give an example of a function, f: (1.2) + R, that is not bounded. (iii) Give an example of a function, f: R → R. and a set. S. so that f attains its maximum on S. (iv) Give an example of a function, f: R R , and a set, S, so that f does not attain its maximum on S....
(1 point) Consider the function f(x) = on the interval [4,9]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists a c in the open interval (4,9) such that f'(c) is equal to this mean slope. For this problem, there is only one c that works. Find it.
1) In each case give an example of A C R and f : R → R continuous such that i A compact with (ii) A connected with f (A) no connected. ii A open with f(A) not open (iv) A closed with f(A) not closed A) no compact
Consider the function f(x)=x22−9. (1 point) Consider the function f(x) = 9. 2 In this problem you will calculate " ( - ) dx by using the definition Lira f(x) dx = lim f(x;)Ar i=1 The summation inside the brackets is R, which is the Riemann sum where the sample points are chosen to be the right-hand endpoints of each sub- interval. r2 Calculate R, for f(x) = -9 on the interval [0, 3] and write your answer as a...
The precise meaning of lim f(x) = L states that... The precise meaning of lim f(z-L states that for every number ε > 0, there is a number δ > 0 such that if 0 < |z-a| < δ then I f(x)-L] < ε Click here to access the Explore It in a new window. x2x under the Explore & Test section of the Explore It. Select Function 3, fx) x 2 (a) According to the ε-δ definition of the...
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...