Suppose directional derivatives of the scalar function f(P), at a point P = (x, y), in the directions b = (3i+4j)/5 and û = (4i - 3j)/5 are 1 and 3 respectively. Then Vf(P) is (a) i - 3j (b) 3i - 3j (c) 3i- j (d) i- j
Suppose directional derivatives of the scalar function f(P), at a point P = (x, y), in the directions b = (3i+4j)/5 and û = (4i - 3j)/5 are 1 and 3 respectively. Then Vf(P) is (a) i - 3j (b) 3i - 3j (c) 3i- j (d) i- j
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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![(1) Suppose directional derivatives of the scalar function f(P),
at a point P = (x, y), in the directions 6 = (3i+ 4j)/5 and
û = (4i - 3j)/5 are 1 and 3 respectively. Then Vf(P) is
(a) i - 3j
(b) 3i - 3j
(c) 3i - j
(d) i- j](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1a414b80-402e-4f9e-8d92-1aeb56baa923%2Fe935fbae-799a-4e93-a68a-924773fadc9a%2F3xjh2z_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(1) Suppose directional derivatives of the scalar function f(P),
at a point P = (x, y), in the directions 6 = (3i+ 4j)/5 and
û = (4i - 3j)/5 are 1 and 3 respectively. Then Vf(P) is
(a) i - 3j
(b) 3i - 3j
(c) 3i - j
(d) i- j
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