ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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(i) If A and B are n x n diagonal matrices, show that AB= BA.
(ii) Let X be any n x k matrix. Show that X'X is a symmetric matrix.
Definition Definition Matrix whose transpose is equal to itself. For a symmetric matrix A, A=AT.
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