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Determine which of the matrices in Exercises $1-6$ are symmetric. $$\left[\begin{array}{cccc}{1} & {2} & {2} & {1} \\ {2} & {2} & {2} & {1} \\ {2} & {2} & {1} & {2}\end{array}\right]$$
Since the matrix is $3^{\star} 4,$ but symetric matrix has to have equal rows and columns. So it is not symmetric.
Algebra
Chapter 7
Symmetric Matrices and Quadratic Forms
Section 1
Diagonalization of Symmetric Matrices
Introduction to Matrices
Campbell University
Harvey Mudd College
Idaho State University
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the dramatics a true one. 2 to 1 to one 2 to 1 This magic that has three rows and four governments. So here that number of rows not equal to the number of car laments. So we can say that the give automatics is not semantic Matics. Thank you for watching.
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