Question: . Consider the following problem. min 2x1 + 15x2 + 5x3 + 6x4 subject to x1 + 6x2 + 3x3 + x4 2 2x1 +

. Consider the following problem.

min 2x1 + 15x2 + 5x3 + 6x4

subject to x1 + 6x2 + 3x3 + x4 2

2x1 + 5x2 x3 + 3x4 3

x1, x2, x3, x4 0

(a) (10 points) Write the dual of the problem. (Use y1 and y2 for dual variables.)

I need two only 'c' answer. Please write well so that I can read your handwriting.

don't coppy different answers.

(c) (10 points) Utilize the information about the dual problem and the duality theory to solve the primal problem.

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