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2 Dol 2011 joo1201-11 noo-11-11-1(-10o01-11-11 loo lol2-1 1-1 Jo o o iti ili -1 i 6. Show that TQTQx > 0 for any matrix Q and
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bet dis assume that product ax exists for my matrix & and vector x. We need to prove that xTQT Q x7,0 Consider les xTaTax = (

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