Question

A. $\begin{bmatrix}1& 2& 3 \\\[0.3em]2 & 4 & 5 \\\[0.3em]3 & 5&6 \\\[0.3em] \end{bmatrix}$ is a Symmetric matrix.
B. $\begin{bmatrix}0 &0 &0 \\\[0.3em]0& 0&0 \\\[0.3em] \end{bmatrix}$ is a Null matrix.
C. $\begin{bmatrix}1& 0& 0 \\\[0.3em]0 & 2 & 0\\\[0.3em]0 & 0&3\\\[0.3em] \end{bmatrix}$ is an Identity matrix.
D. $\begin{bmatrix}0& 1&2 \\\[0.3em]-1 & 0 & 3 \\\[0.3em]-2 & 3&0\\\[0.3em] \end{bmatrix}$ is a Skew symmetric matrix.
E. $\begin{bmatrix}\sqrt{3} &0& 0\\\[0.3em]0 & \sqrt{3} & 0 \\\[0.3em]0 & 0&\sqrt{3} \\\[0.3em] \end{bmatrix}$ is a Scalar matrix
Choose the correct answer from the options given below:

• A. A, B, E only
• B. B, C only
• C. D, E only
• D. B, D, E only

Answer 1

Answer: (A)

A, B, E only

Answer 2

The correct option is (A): A, B, E only