918 Find the directional derivative of f at P in the direction of a. f(x, y) =
Chapter 13, Problem 13(choose chapter or problem)
Find the directional derivative of \(f\) at \(P\) in the direction of \(a\).
\(f(x, y)=\tan ^{-1}(y / x) ; P(-2,2) ; a=-i-j\)
Equation Transcription:
Text Transcription:
f
P
a
f(x, y)=tan^-1(y/x); P(-2, 2); a=-i-j
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