In Exercises 19–24, find the directions in which the

Chapter 13, Problem 19E

(choose chapter or problem)

In Exercises 19–24, find the directions in which the functions increase and decrease most rapidly at \(P_{0}\). Then find the derivatives of the functions in these directions.

             \(f(x, y)=x^{2}+x y+y^{2}, P_{0}(-1,1)\)

Equation Transcription:

Text Transcription:

P_0

f(x,y) = x^2+xy +y^2, P_0 (-1,1)

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