The matrix [ 1 2 4 2 5 6 4 6 7 ] is a:

Question

The matrix $[\begin{matrix} 1 & 2 & 4 \\ 2 & 5 & 6 \\ 4 & 6 & 7 \end{matrix}]$ is a:

Smart Achievers · Accepted Answer

(2)

Ans. symmetric matrix

Explanation:

We have $A = [\begin{matrix} 1 & 2 & 4 \\ 2 & 5 & 6 \\ 4 & 6 & 7 \end{matrix}]$

$\Rightarrow$ $A' = [\begin{matrix} 1 & 2 & 4 \\ 2 & 5 & 6 \\ 4 & 6 & 7 \end{matrix}]$

$∵$ $A' = A$

So, the given matrix is a symmetric matrix.

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