Problem : Find the points on the surface that are closest to the origin. I solved it for z: . and I said: I stopped here.
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For the solution using Lagrange multipliers see the attachment check my arithmetic
Originally Posted by TWiX Problem : Find the points on the surface that are closest to the origin. I solved it for z: . and I said: I stopped here. The square distance: so: Which leaves you with the unconstrained minimisation of a function of two variables. CB
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