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Prove that diagonal matrices are symmetric matrices
Chapter 1, Problem 7(choose chapter or problem)
QUESTION:
Prove that diagonal matrices are symmetric matrices.
Questions & Answers
QUESTION:
Prove that diagonal matrices are symmetric matrices.
ANSWER:Step 1 of 3
Given: To prove diagonal matrices are symmetric matrices.
Assume that is diagonal matrix and we need to show that is symmetric that is, .
Let be an matrix whose entry is .
Since is diagonal,
.