Let F(x, y) = (2xy)i + (x?+ 2y). Then for any piecewise smooth oriented path C...
3. Let Hi, y) = (2xy)i + (x2 +2y) Then for any piecewise smooth oriented عاريا path C beginning at (0,0) and ending at (1,3), (Hint: This is a conservative vector field. Use Fundamental Theorem of Calculus for Line Integrals!!!) a) 3 b) 6 c) 9 d) 12 e) none of these
y? - 2xy x + y2 if (x, y) + (0,0) 7. Given the piecewise function: f(x,y) 0 if (x, y) = (0,0) a) Show that: limf(x,y) does not exist. *(x,y) (0,0) b) Find: fy(0,0). c) Where is f continuous? Where is f differentiable? Explain.
let F(x,y) = 3x^2y^2i+2x^3yj and c be the path consisting of
line segments from(1,2) to (-1,3), from (-1,3) to (-1,1), and from
(-1,1) to (2,1). evaluate the line integral of F along c.
Let F(x, y) = 3x²y2 i + 2x’yj and C be the path consisting of line segments from (1, 2) to (-1,3), from (-1, 3) to (-1, 1), and from (-1, 1) to (2, 1). Evaluate the line integral of F along C.
7. Assume (x, y,x)(2xy, y',5z - y). Let E be the solid upright cylinder between the planes z 0 and z-3 with base the disc x2 + y2 < 9, and let S be the outwardly oriented boundary surface of E. Note that S consists of three smooth surfaces; the surface Si of the cylinder, plus the top disc Di and the bottom disc D2. Follow the steps to verify the Divergence Theorem. (a) [12 pts.] Evaluate dS directly
7....
4. Let F(x,y) - PiQj be a smooth plane vector field defined for (x,y) f (0,0), and F - dr for integer j, and all suppose Q - Py for (z, y) (0,0). In the following L-JF dr for integer j, and all G are positively oriented circles. Suppose h = π where G is the circle x2 + y2-1. (a) Find 12 for G : (x-2)2 + y-1. Explain briefly. (b) Find Is for Cs: ( -2)y 9. Explain...
Please solve this problem completely.
(1) Length of graphs a) Let a path C be given by the graph of y - g(x), a b, with a piecewise C function g : [a,b] → R. Show that the path integral of a continuous function f : R2 → R over the path C is b) Let g: a bR be a piecewise Cl function. The length of the graph of g on (t, g(t)). Show that [a,b] is defined as...
(d) The line integral [(x+y?)dx + (x2 + 2xy)dy, where the positively oriented curve C is the boundary of the region in the first quadrant determined by the graphs of x=0, y=x2 and y=1, can be converted to A 2xdydx 0 0 BJ 2 xdxdy 0 0 С -2x)dyda 00 D none of the above (e) Consider finding the maximum and minimum values of the function f(x, y) = x + y2 - 4x + 4y subject to the constraint...
4. Let - xy’i +3yj , and let C be the counterclockwise oriented triangle whose vertices are 0(0,0), P(2,0) and Q(2,8). Using Green's Theorem, ايثار a) Sf(-2x)dyex b) ſj(-2xy)dydx c) ff(xv* + 3y Mdvdx 0555(xv? +3 y Ddydx e) none of these 00 0 0
6. Calculate the following line integrals of vector fields. Be sure to name any theorems you use; if you don't use a theorem, write "calculated directly2 (d) F . dr, where F(x,y)-(2ry-уг, r2 +3y2-2cy), and C is the piecewise-linear path frorn (1,3) to (5,2 to (12) to (4,1) (e) φ F.dr, where F(z,y)-(3ysin(Zy), 3rsin(2y)+6ry cos(2p)), and C is the ellipse 2 +9y2-64. oriented counter-clockwise
6. Calculate the following line integrals of vector fields. Be sure to name any theorems you...
Q1. Let z = f(x,y) -√4x² – 2y² Find (i). domain of f(x,y) (ii). range of f(x,y) (iii). f(1,1) (iv). The level curves of f(x,y) for k = 0,1,2 4x2y Q3. Let f(x,y) = x2+y2 if (x,y) = (0,0) 1 if (x,y) = (0,0) Find (i) lim limf(x,y) (x,y)-(0,0) (ii). Is f(x, y) continuous at (0,0)? (iii). Find the largest set S on which f(x,y) is continuous.