Find the stationary points of the following function f(t, y) = 2.3 + 3xy? – 322...
Find the directional derivative D−→ u f(x,y) of the function f(x,y) = x2 + 3xy + y3 where →− u is the unit vector given by angle θ = π 4. What is D−→ u f(1,1)?
4. Given the function f(x,y) = 4+x2 + y3 – 3xy. a. Find all critical points of the function. b. Use the second partials test to find any relative extrema or saddle points.
5. Let F (y”, 2xy + €35, 3yes-). Find the curl V F. Is the vector field F conservative? If so, find a potential function, and use the Fundamental Theorem of Line Integrals (FTLI) to evaluate the vector line integral ScF. dr along any path from (0,0,0) to (1,1,1). 6. Compute the Curl x F = Q. - P, of the vector field F = (x4, xy), and use Green's theorem to evaluate the circulation (flow, work) $ex* dx +...
Urgently , just final ans
Consider the function (x,y) = (x² + y)e . Find the correct answer for the functions Select one: A. f(,y) has only one critical point B. f(,y) takes negative values in the domain (0,2) 0,2 cf(,y) has one minimum and one saddle point D. Fr,y) has one maximum and one saddle point OE. f(x,y) takes minimum value at the point (2,0)
(2 points) Find the maximum and minimum values of the function f(x, y) = 2x2 + 3y2 – 4x – 5 on the domain x2 + y2 < 100. The maximum value of f(x, y) is: List the point(s) where the function attains its maximum as an ordered pair, such as (-6,3), or a list of ordered pairs if there is more than one point, such as (1,3), (-4,7). The minimum value of f(x,y) is: List points where the function...
Find the linear approximation to the function f (,y) = 34+ 3xy at the point (2,y) = (3,-1). L 2,y) = (write the appropriate function of u and y). Use this linear approximation to estimate f (3.03, -1.02) Number (the numerical answer must be precise up to +0.001).
2.1(9pts) Consider thc following contour plot for thc arbitrary function f(x,y): Y 0 2 Х -1 + 1. What is vf(0,0). Why? 2. At the point (0,2), in what direction should one move to increase the fastest? 3. Which vector has the greater magnitude: Vf(-1,0) or f(2,0)? CS Scanned with CamScanner
QUESTION 1 (A). Stationary points For the notion of a "stationary point" to make sense for a function f: R" R the f function J must be at least: Select one: a. Infinitely differentiable b. Not everywhere zero C. Continuous d. Once differentiable e. None of the other options listed (B). Lagrange multipliers A (single) Lagrange multiplier arises from the requirement that Select one: a. a cross product is nonzero b. two numbers are proportional C. two square matrices are...
For f(x, y) 3xy X cos y 4x y find f,, f,, f fw and f (10 pts) 1. + - (10 pts) a2 sin(akt) sin(kx) satisfies the wave equation Determine if v(x, t) 2 = 0 (10 pts) Inx + y satisfies the harmonic equation Determine if f(x, y) + 3. ay2
The graph of the first derivative f'(x) of function f(2), 1€ (-5,5) is shown below. Then f(x) has a local minimum at (-1,1) - 2+ (0,0) (4,0) (-2,0) 2 - 2 (2,-2) Graph of f'(x) Select one: O a. None of these. O b. x = -2,0,4 only. C. 2 = 2 only. d. 2= -2,4 only. e. 2 = 0 only. Oo oo Consider a function f(x), a € (-0,00) whose first derivative is f'(2) = 1 +(22 –...