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The matrix $\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1\end{array}\right]$ is a |
zero matrix Identity matrix Scalar matrix Diagonal matrix |
Diagonal matrix |
$\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1\end{array}\right]$ as only diagonal elements are filled all other are zero this is a diagonal matrix |
