Question: 3. Show that the function -x'+2xy-2y' -3x+4y+1 is concave. Find its global maximum value Show that the function x 2 + 2xy is concave. Find

Show that the function x 2 + 2xy is concave. Find its

global maximum value. 2y2 3x +4y+1

3. Show that the function -x'+2xy-2y' -3x+4y+1 is concave. Find its global maximum value

Show that the function x 2 + 2xy is concave. Find its global maximum value. 2y2 3x +4y+1

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