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$4.00 Diagonal,Orthogonal matrix

• From Mathematics: General-Mathematics , Mathematics: Matrix-Theory
• Closed, but you can still post tutorials
• Due on Feb. 08, 2009
• Asked on Feb. 06, 2009 at 09:30:05AM

Q:

A)Prove that if Orthogonal matrix is triangular,that means it also Diagonal,explain..
B)having matrix A=(2 1 1 ,1 2 1 ,1 1 2)
find the Orthogonal matrix P in which (P^t)AP is diagonal.explain

Thanks.

 

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