Question: Consider the problem of minimizing the function f (x, y) = x on the curve y 2 + x 4 - x 3 = 0

Consider the problem of minimizing the function f (x, y) = x on the curve y² + x⁴ - x³ = 0 (a piriform).
(a) Try using Lagrange multipliers to solve the problem.
(b) Show that the minimum value is f (0, 0) = 0 but the Lagrange condition ∇f (0, 0) = λ∇g(0, 0) is not satisfied for any value of λ.
(c) Explain why Lagrange multipliers fail to find the minimum value in this case.

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