In Problem D-12, show that f( x 1 , x 2 , x 3 ) is strictly
Question:
In Problem D-12, show that −f( x1, x2 , x3) is strictly concave.
Problem D-12:
Show that the quadratic function
is strictly convex.
Transcribed Image Text:
f(x₁, x₂, x3) = 5x² + 5x² + 4x² + 4x₁x₂ + 2x₂x3
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