Suppose that g is a function of two independent variables that has continuous partial derivatives, and consider the points P(9,2), Q(19,2), R(9, 12) and S(11,6). You are given that the directional derivative of g at P in direction PQ → is 14, whilst the directional derivative of g at P in direction PR is 2. → Find the directional derivative of g at P in direction PS.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
I am struggling with this question
Suppose that g is a function of two independent variables that has
continuous partial derivatives, and consider the points P(9,2),
Q(19,2), R(9, 12) and S(11,6).
→
You are given that the directional derivative of g at P in direction PQ
is 14, whilst the directional derivative of g at P in direction PR is 2.
→
→
Find the directional derivative of g at P in direction PS.
D →g(P)
PS
b
=
sin (a)
ə
ƒ
əx
8
a
Ω
Transcribed Image Text:Suppose that g is a function of two independent variables that has continuous partial derivatives, and consider the points P(9,2), Q(19,2), R(9, 12) and S(11,6). → You are given that the directional derivative of g at P in direction PQ is 14, whilst the directional derivative of g at P in direction PR is 2. → → Find the directional derivative of g at P in direction PS. D →g(P) PS b = sin (a) ə ƒ əx 8 a Ω
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,