Find f f, and f,, and evaluate each at the given point. ху f(x, y, z) = (2, 1, –1) %3D x + y + z fx(X, y, z) = ,(x, y. z) = %3D f,(x, Y, z) = %3D f,(2, 1, -1) = fy(2, 1, -1) = f(2, 1, –1) = %3D

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Find f f, and f,, and evaluate each at the given point.
z'
ху
f(x, y, z) =
(2, 1, -1)
x + y + z
fx(x, y, z) =
%3D
fy(x, Y, z) =
%3D
f_(x, y, z) =
%3D
f,(2, 1, -1) =
fy(2, 1, -1) =
f(2, 1, –1) =
%3D
Transcribed Image Text:Find f f, and f,, and evaluate each at the given point. z' ху f(x, y, z) = (2, 1, -1) x + y + z fx(x, y, z) = %3D fy(x, Y, z) = %3D f_(x, y, z) = %3D f,(2, 1, -1) = fy(2, 1, -1) = f(2, 1, –1) = %3D
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