Question 20 Given that A= 12 -5 has the form A= PCP-¹, C- 0c-12²2 C OP-11 0 -3 -1 and P = Op- and P = and C= OP-[¹, 3- P= Find an invertible matrix P and matrix C of the form and C= 1 11 -4 -4 OP-C-[14] and C= a b -b a such that the given matrix

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