We consider the function f(x, y, z) := x2 + 4y2 + 3xy - lnz + z2 - 5x - 12y - z on {(x, y, z) ∈ R3 : z > 0}. The functio

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answerhappygod
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We consider the function f(x, y, z) := x2 + 4y2 + 3xy - lnz + z2 - 5x - 12y - z on {(x, y, z) ∈ R3 : z > 0}. The functio

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We consider the function f(x, y, z) := x2 +4y2 + 3xy - lnz + z2 - 5x - 12y - z on {(x,y, z) ∈ R3 : z > 0}.
The function f has exactly one minimum. Calculateit!
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