Exercise 3. Chain rule (15 pts) Let f(x,y,z) = xy +z-5, x = r + 2s,...
Let f(x,y,z) = xy + z-5,x=r +2s, y = 2r - sec(s), z = s Then I is: ar a. r - sec(s) b. sec(s) c. r+s+sec(s) d. 4r + 4s - sec(s) a. b. C. Given zº – xy + y2 + y2 = 2 and z is a differentiable function in x and y. Then at (1,1,1) is: дх a. 0 b. 1 c. d. e. None of the above o a. o b. ♡ C. o d.
i need justification please Exercise 1. Tangent plane (15 pts) Let (S) be the surface given by the following equation. x+y2 = 1+z2 An equation of the tangent plane to (S) at A(1,2,2) is: a. 2x + 4y – 4z = 1 b. x + y -z = 0 c. x + 2y – 2z = 1 d. x + y - z= 2 e. None of the above Exercise 3. Chain rule (15 pts) Let f(x,y,z) = xy +z...
Exercise 1. Tangent plane (15 pts) Let (S) be the surface given by the following equation. x+y2 = 1 + z2 An equation of the tangent plane to (S) at A(1,2,2) is: a. 2x + 4y - 4z = 1 b. x +y - z = 0 c. x + 2y – 2z = 1 d. x + y -z = 2 e. None of the above a b d. Exercise 3. Chain rule (15 pts) Let f(x,y,z) = xy...
Exercise 2. Directional derivative (6 pts + 9 pts) Let f(x, y, z) = xy + y2 – 23 – 105. ... touch 25% 17:12 docs.google.com 2) The direction in which f decreases most rapidly at A(0,1,1) is: a. e. None of the above a. b. C. Exercise 3. Chain rule (15 pts) Let f(x,y,z) = xy +z-5,x=r+2s,y = 2r - sec(s),z=s
Exercise 2. Directional derivative (6 pts + 9 pts) Let f(x, y, z) = xy + y2 – 23 – 105. 2) The direction in which f decreases most rapidly at A(0,1,1) is: 2 a. + 3 b. 是最+ i ++ d. 高+ C. 3 14 e. None of the above
3. (a) Find the partial derivatives (with respect to r and s) using the chain rule:[express the final answer in r and s only ,y= r2 +In(s) and z-2r wx2y +z2 ; where x (b) Find dt if f (x, y) = xy + z; where x cos t ,y = sint and z = 3t2
4. Let f(x, y, z) = rytan'() + z sin(xy), < = wy=v²v, z = ". Find fu and , using the chain rule.
a. Use the Chain Rule to find the indicated partial derivatives. z = x4 + x2y, x = s + 2t − u, y = stu2; ∂z ∂s ∂z ∂t ∂z ∂u when s = 1, t = 2, u = 3 b. Use the Chain Rule to find the indicated partial derivatives. w = xy + yz + zx, x = r cos(θ), y = r sin(θ), z = rθ; ∂w ∂r ∂w ∂θ when r = 8, θ = pi/2 c. Use the...
Exercise 2. Directional derivative (6 pts + 9 pts) Let f(x,y,z) = xy + y2 – 23 – 105. 1) vf = a. yi + (x + 2y); – 3z2K b. (y + y2)i + (x + 2y); - 3z2k c. xi + (y + 2y); - 3z2K d. None of the above a. b. C. d. 2) The direction in which ſ decreases most rapidly at A(0,1,1) is: a. 14 14 c. wait tasta d tai-haiti e. None of...
Let f(x,y) = xy and c(t) = (a) Calculate: Vf.d(t) = (b) Use the Chain Rule for Paths to evaluate f(c(t)) at t = -1. a f(c(-1)) =