Find extremals b) J(y) oe2(y - y2)d, y(0)=1, y(3) free c) J(y) Jo2+'y )d, y(0) = , y(1) free. d) J(y) 22y2 -...
Question 4 (Geodesics on surfaces of revolution) Let S be a surface of revolution and consider for it the parametrization x(u, v) ((v) cos u, p(v) sin u, ^(v) Assume in addition that (a)2 +()21 (a) Prove that a curve a(t) = x(u(t), v(t)) is a geodesic of S if and only if it satisfies dip 1 ü2 dv p dip p(u)2 0, dv where here and in what follows the dot denotes derivative with respect to t 5 marks...
5. Find extremals for the following functionals: (b) J(y) = S. (1 + (y")2) dx, y(0) = 0, y'(0) = 1, y(1) = 1, y(1) = 1.
1(a) Let f : R2 → R b constant M > 0 such that livf(x,y)|| (0.0)-0. Assume that there exists a e continuously differentiable, with Mv/r2 + уг, for all (z. y) E R2 If(x,y)| 〈 M(x2 + y2)· for all (a·y) E R2 Prove that: 1(a) Let f : R2 → R b constant M > 0 such that livf(x,y)|| (0.0)-0. Assume that there exists a e continuously differentiable, with Mv/r2 + уг, for all (z. y) E R2...
All of 10 questions, please. 1. Find and classify all the critical points of the function. f(x,y) - x2(y - 2) - y2 » 2. Evaluate the integral. 3. Determine the volume of the solid that is inside the cylinder x2 + y2- 16 below z-2x2 + 2y2 and above the xy - plane. 4. Determine the surface area of the portion of 2x + 3y + 6z - 9 that is in the 1st octant. » 5. Evaluate JSxz...
Problem 1.20. Let f(z, y)-(X2-y2)/(z2 + y2) 2 for x, y E (0, 1]. Prove that f(x, y) dx dy f f(x,y) dy)dr. Jo Jo JoJo
please help with both a and b 16 an Let F(x, y) = (x2 - y2) it (x²+y²); let C be the path that starts at (-1,0), travels a long the xaxis to (1,0) then along the circle ² + y²= 1 counter cockwise back to (-1,0) compute the work down along the path b) Let F(x, y, z) = (x+y)i + (y-2)j + (x2-52)k Lets be the solid tetrahedron in the first octant with vertices (0,0,0), (1,0,0), (0, 1,0)...
Let Yı, Y, have the joint density S 2, 0 < y2 <yi <1 f(y1, y2) = 0, elsewhere. Use the method of transformation to derive the joint density function for U1 = Y/Y2,U2 = Y2, and then derive the marginal density of U1.
1 Let F = (22+y2) -y i + x j). Find a nontrivial curve Cį such that F .dm = 0 and a nontrivial curve C, such that fc, F.dm #0. Justify Sc, F your answers.
·J (I) < 0 for all such y. (Hint: let g(x)--f(x) and use part (a)) 3. In this problem, we prove the Intermedinte Value Theorem. Let Intermediate Value Theorem. Let f : [a → R be continuous, and suppose f(a) < 0 and f(b) >0. Define S = {t E [a, b] : f(z) < 0 for allェE [a,t)) (a) Prove that s is nonempty and bounded above. Deduce that c= sup S exists, and that astst (b) Use Problem...
(1 point) Suppose y2 y2 3 3 2 2 y(t) = cie + cze [1] 1 y1 y1 [-1] 7(1) = [21] -3 -2 2 3 -3 -2 -1 1 2 3 -1 -2 -3 -3 (a) Find ci and C2 А B C1 = 1.3591 y2 y2 3 3 C2 = 0.1839 2 2 1 1 y1 y1 -2 -1 1 2 3 -3 -2 -1 1 2 3 (b) Sketch the phase plane trajectory that satisfies the given...