In Exercises 71–74, find a function z = f(x,y) whose partial deriva- tives are as given, or explain why this is impossible. af Зx?у? — 2х, дх af = 2xy + 6y ду 71. af af = 2xe* + x?y?e** + 3, дх 2r*ye»* – e" ду 72. af 73. дх 2y af 2x (x + y)²' ðy (x + y)² af af = x cos (xy) ду 74. — ху сos (ху) + sin (ху), дх
In Exercises 71–74, find a function z = f(x,y) whose partial deriva- tives are as given, or explain why this is impossible. af Зx?у? — 2х, дх af = 2xy + 6y ду 71. af af = 2xe* + x?y?e** + 3, дх 2r*ye»* – e" ду 72. af 73. дх 2y af 2x (x + y)²' ðy (x + y)² af af = x cos (xy) ду 74. — ху сos (ху) + sin (ху), дх
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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