Suppose f(x, y): = 2 and u is the unit vector in the direction of (2, -1). Then, x² + y² (a) ▼ f(x, y) =. Your answer should be a vector (b) Vf(1,4)= Your answer should be a vector (c) fu (1,4)= Du f(1, 4) = Your answer should be a number

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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Suppose f(x, y)
(a) ▼ ƒ(x, y):
=
(b) ▼ƒ(1,4) =
=
=
0
2
x² + y²
and u is the unit vector in the direction of (2, -1). Then,
Your answer should be a vector
Your answer should be a vector
(c) fu (1, 4) = Du f(1,4) =
=
Your answer should be a number
Transcribed Image Text:Suppose f(x, y) (a) ▼ ƒ(x, y): = (b) ▼ƒ(1,4) = = = 0 2 x² + y² and u is the unit vector in the direction of (2, -1). Then, Your answer should be a vector Your answer should be a vector (c) fu (1, 4) = Du f(1,4) = = Your answer should be a number
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