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Unformatted text preview: (a) Determine the critical point(s) of f . (b) Show that the bilinear form D 2 f ( a ) is semi-denite. Use directly the denition of positive/negative (semi)-deniteness of bilinear forms. Do not use the criteria that we did not prove in the class. (c) Along the direction vectors for which the strict deniteness is bro-ken, investigate if f increases or decreases. Ferit Ozturk, Bogazici University 2006...
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- Spring '11