Q5. [8pnts] Use Taylor's formula to find a quadratic approximation of the function f(z, y) at the origin. Estimate the error in the approximation if |x| < .1 and |y| < .1 e-2y 1+n2
Q5. [8pnts] Use Taylor's formula to find a quadratic approximation of the function f(z, y) at the origin. Estimate the error in the approximation if |x|
1. Which of the following could represent a function, f (x,y), with first-order partial derivatives ∂ƒ/ ∂x = 3xy (xy + 2) ∂ƒ/ ∂y = x2 (2xy + 3) A. xy (x2y + 3) B. x3y2 + 3x2 – y – 6 C. x2 (xy2 + 3) D. none of these E. x3y2 + 2x2y3 + 1 2. It the consumption function is C = 0.02Y2 + 0.1Y +25. Find the value of Y when MPS = 0.38. 3. State...
show all working please
10 Given z = 2 – j2 is a root of 2z' - 9z2 + 202 - 8 = 0 find the remaining roots of the equation. Find the real and imaginary parts of z when 1 2 1 2 2 + j3 3 - 2 .. Find z = Z4 + z2z3/(z2+z3) when 2, = 2 +j3, z2 = 3 + j4 and 23 = -5+j12. Find the values of the real numbers x and...
Q5. a) Let f(z) be an analytic function on a connected open set D. If there are two constants and C, EC, not all zero, such that cf(z)+ f(2)=0 for all z € D, then show that f(z) is [4] a constant on D. b) Evaluate the contour integral f(z)dz using the parametric representations for C, where f(2)= and the curve C is the right hand half circle 1z| = 2, from z=-2 to z=2i. [4] c) Evaluate the contour...
Find the constrained extrema of the function f (x, y, z) = x + y + z on the plane given by the equation x^2 + 2xy + 2y^2 + 3z^2 = 1.
Suppose x is a random variable with the generating function f(z) = e^z - e + 2 - z Find P(x=3) --> answer should be 1/6 Find E(x) --> answer should be e-1 Find Var(x) --> answer should be 4e-e^2-2 Please show work
The equation of electric potential in space is given by: V(x,y,z) = 2xy/x 1. Calculate the electric potential at point (x = 1, y = -2, z = 3) in space. 2. Find the electric field E vector as a function of x, y, z. 3. Calculate the electric field at point (x = 1, y = -2, z = 3) in space.
Create a surface plot and a contour plot of the function z=(x-2)^2+2xy+y^2. Using the matlab
A potential function is given as:
1) Obtain the E(x,y,z)
2) Show that E is an acceptable static electric field
3) What is the charge density function
corresponding to this potential?
O(x, y, z) = -x²y- rz3
given the quadratic form h(x,y,z) = 3x^2 +3xy - 2y^2 + 3xz -4z^2 if a function g(x,y,z) is = h(x+3,y+2,z-5) and has an origin that is a critical point for h(x,y,z) find a critical point for g(x,y,z) while not calculating one, also is it a minimum or a maximum and is it unique?