Find a function of two variables f(x,y) for which D = 0, but the function has a minimum. Exclude the trivial functions f(x,y) = constant. Explain why your example has a minimum and show in detail that D = 0 at that minimum. I think this has something to do with using Lagrange Multipliers...

Find a function of two variables f(x,y) for which D = 0, but the function has a minimum. Exclude the trivial functions f(x,y) = constant. Explain why your example has a minimum and show in detail that D = 0 at that minimum. I think this has something to do with using Lagrange Multipliers...

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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