If A and B are arbitrary real m x n matrices, then the mapping (A, B) = trace(A"B) defines an inner product in IRX", Use this inner product to find (A, B), the norms || A|| and || B||, and the angle a 4,B between A and B for 2 -2 -27 A = -1 and B= -1 -2 -3 3 (A, B) = || A|| = ||B|| = C A,B =

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