Which of the following is a diagonal matrix.
Posted: Wed Jul 13, 2022 8:06 pm
a) A=\(\begin{bmatrix}0&2&1\\2&0&1\\2&1&0\end{bmatrix}\)
b) A=\(\begin{bmatrix}5&1&0\\0&5&0\\0&0&5\end{bmatrix}\)
c) A=\(\begin{bmatrix}4&0&0\\0&5&0\\0&0&9\end{bmatrix}\)
d) A=\(\begin{bmatrix}2&2&2\\3&3&3\\4&4&4\end{bmatrix}\)
b) A=\(\begin{bmatrix}5&1&0\\0&5&0\\0&0&5\end{bmatrix}\)
c) A=\(\begin{bmatrix}4&0&0\\0&5&0\\0&0&9\end{bmatrix}\)
d) A=\(\begin{bmatrix}2&2&2\\3&3&3\\4&4&4\end{bmatrix}\)