Find the first partial derivatives of at the point (x, y) (1,2). x + y f(x, y) af -(1,2) = 2/3 af (1,2) = ду -2/3

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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Find the first partial derivatives of
f(x, y) =
at the point (x, y) = (1,2).
x +y
af
(1,2) =
2/3
fe
ду
(1, 2) =
-2/3
Transcribed Image Text:(1 point) Find the first partial derivatives of f(x, y) = at the point (x, y) = (1,2). x +y af (1,2) = 2/3 fe ду (1, 2) = -2/3
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