当前位置:天才代写 > 作业代写 > 多变量微积分代写 MATH2720代写

多变量微积分代写 MATH2720代写

2021-10-28 15:57 星期四 所属: 作业代写 浏览:24

多变量微积分代写

MATH2720 Multi-variable Calculus: Test Practice Pools

多变量微积分代写 Let z = (y2x2)2. Find all critical points of z. Identify whether they are local minimum, local maximum or saddle points.

Test 2 Practice Pool  多变量微积分代写

Disclaimer: There is no guarantee that your actual test questions will resemble these practice problems.

  1. Let
多变量微积分代写
多变量微积分代写

(a)Finda ray approaching the origin along which f (x, y) = 1.

(b)Finda ray approaching the origin along which f (x, y) = 0.

(c)Whatcan we say about the limit of lim(x,y)(0,0) f (x, y)?

  1. Evaluate ifpossible:

  1. Evaluate each of the following limits or show that it does notexist:
多变量微积分代写
多变量微积分代写
  1. Let

(a)Computefx using the defifinition.

(b)Computefy using the defifinition.

(c)Findd f (t, t)|t=0.

多变量微积分代写
多变量微积分代写

5.Findall first and second order partial derivatives of the following function and evaluate them at the given   多变量微积分代写

f (x, y, z) = ln(1 + exyz), (2, 0, 1).

  1. Findall first and second order partial derivatives of the following function and evaluate them at the given

  1. Letf be any differentiable function of one  Define z f (x2 + y2). Does the equation

always hold?

yzx xzy = 0

  1. Letw f (x, y, t) with x and y depending on  Suppose that at some point (x, y) and at some time t, the partial derivatives fx, fy, ft are equal  多变量微积分代写

to 2,3,and 5 respectively, while  what is dw ? Is it the same with ft? why or why not?

  1. Evaluatews and wt given w x2 + y2 + z2, x st, y s cos t, z s sint
  2. Suppose x2y +z = 1. Let w = sin x cos(2y). Find
多变量微积分代写
多变量微积分代写

11.Letf  Find the equation of tangent plane to the surface z = f (x, y) at (1, 1, 1 )多变量微积分代写

  1. Consider the surface z = f (x, y) defined implicitly by the equation xyz2+ y2z3 = 3 + x2. Use a 3–dimensional gradient vector to find the equation of the tangent plane to this surface at the point (1, 1, 2).
  2. Findall horizontal planes that are tangent to the surface with equation z xye(x  +y  )/2.

14.Find the directional derivative of f (x, y, z) = exyzin the direction of (0, 1, 1) at (0, 1, 1).  多变量微积分代写

  1. Let z = (y2x2)2. Find all critical points of z. Identify whether they are local minimum, local maximum or saddle points.

16.: Find all critical points for f (x, y) = x(x2+ xy + y2 9). Also find out which of these points give local maximum values for f(x, y), which give local minimum values, and which give saddle points.

17.Use the Second Derivative Test to find all values of the constant c for whichthe function z x2 + cxy y2 has a saddle point at (0, 0).

18.Findthe maximum and minimum values of f (x, y) = xy  x3y2when (x,y) runs over the square 0 x 1, 0 y 1.

多变量微积分代写
多变量微积分代写

更多代写:cs代写作业 midterm代考  Essay英文代写 Essay作业代写 学术法学论文代写 Math数学网课代考

合作平台:essay代写 论文代写 写手招聘 英国留学生代写

 

天才代写-代写联系方式