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The matrix \(\begin{bmatrix} 1 & 0 & 0 \\[0.3em] 0 & 2 & 0 \\[0.3em] 0 & 0 & 4 \end{bmatrix}\) is a

A. identity matrix
B. symmetric matrix
C. skew symmetric matrix
D. none of these

1 Answer

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by (50.2k points)
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Best answer

As, AT = A

∴ It is symmetric matrix.

∴ Option(B) is the correct answer.

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