U z 2 8 6 5 a nsw er true or false to the follow

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Unformatted text preview: nal. 2 2 2 T rue. W e have u v u 2u v v u v , so u v 0 and u and v are orthogonal. 2 2 2 2 2 d. F or an m n m atrix A and 1 i m , if x in the null space o f A then x is orthogonal t o A i . , the i th r ow of A . T rue. If x in the null space of A then A x 0 but the i th c omponent of A x is A i . x , w hich is zero. n 6 . V erify the parallelogram law for v ectors u and v in : u v u v 2 u 2 v . 2 2 2 2 W e have u v u v u 2u v v u 2u v v 2 u 2 v . 2 7 . G iven v ectors u and v in 2 n 2 2 2 2 2 2 , consider vectors of the form v u, for all scalars . a. D etermine so that v u is orthogonal...
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