Question: Suppose c = [1,2] in a maximization problem. Is d = [-2,1] an improving direction? How about d = [1,-1] and d [-1,1] = cd

 Suppose c = [1,2] in a maximization problem. Is d = [-2,1] an improving direction? How about d = [1,-1] and d [-1,1] = cd < 0 cd > 0 cd = 0

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