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Unformatted text preview: 1 u 1 + 2 u 2 where i = x u i for i = 1 , 2 . (c) Show that if M = [ Q ] and x = ( x,y ) then Q has the weighted squares decomposition Q ( x,y ) = 1 2 1 + 2 2 2 . 4. Let A = p a b c d P be any 2 2 matrix. (a) Show that the characteristic polynomial det( A I ) is a polynomial of degree 2 in the variable . (b) Show that if A is 3 3, the same polynomial is of degree 3....
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This note was uploaded on 10/20/2011 for the course MAC 2311 taught by Professor All during the Spring '08 term at University of Florida.
- Spring '08