(a) Draw examples of cases in which the conditions of the theorem are not met, but local optima are also global optima. (b) Explain why the set B in Fig. D.2 consists of points which yield at least as...

(a) Draw examples of cases in which the conditions of the theorem are not met, but local optima are also global optima. (b) Explain why the set B in Fig. D.2 consists of points which yield at least as high values of the objective function as those along the segment ab.