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# 2d - Quiz 2 Last Name MAO First Name lKOM 1(4 marks The...

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Unformatted text preview: Quiz 2. Last Name: MAO First Name: lKOM 1. (4 marks) The matrix Operations appearing in the following statements are always deﬁned. Indicate Whether the statements are always True or sometimes False: 7) Every elementary matrix is invertible V/ True False (77) (AB)T = BTAT 7/ True False (777) If A is invertible, then so is AT 7/True False (772) (AB’U’1 = A’lB True V/ False 3 —5 0 3 0 l A: B: 2 3 —l 3 l 2 l —2 —3 CNS)“ = 1—1 +O-C—u)+g-O+l-5+O~Li=7 // 0 3 0 3. (4 marks) Find the inverse OfAz l 2 l 2 4 3 3 0 1 o o [Al13]:... l 2. l 0 l 0 Z q '5 o o 1 l Z l 0 l O R‘C—JQL; Q s o t o o l H 3 o o l l 2 I o t 0 {if} 0 t 0 K2, 0 0 KER—3'22} O O l 0 “Z l 3 _ I Z O O 5 —-l K R\ K3 ~Z/3 3 o I 0 V5 0 o , \9 AnswerzA 1= l O o o | O -z 1 /3 0 —-Z olO'/2>°° 00(0-11 Q\1Q\-1R2Kl 0 O "1/2, 1—! ...
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