Matrices Test -...

If $$A$$ and $$B$$ are symmetric matrices of order $$\displaystyle n,\left( A\neq B \right) $$, then

If $$ A= \begin{bmatrix} 1 & 2\end{bmatrix}, B=\begin{bmatrix} 3 & 4\end{bmatrix}$$ then $$A+B=$$

Find the output order for the following matrix multiplication $$A_{4 \times 2}\times B_{2\times4}$$?

If the matrices $$A=\begin{bmatrix}2 & 1 & 3 \\4 & 1 & 0\end{bmatrix}$$ and $$B=\begin{bmatrix}1 & -1\\ 0 & 2 \\5 & 0\end{bmatrix}$$, then AB will be

What is the output for the following matrix multiplication $$A_{3 \times 2}\times B_{2\times 3}$$?

Find the output order for the following matrix multiplication $$X_{5 \times 3}\times Y_{3\times 5}$$?

$$A=\begin{bmatrix} \cos\theta & -\sin\theta \\ \sin\theta & \cos\theta\end{bmatrix}$$ and $$AB=BA=I$$, then B is equal to

If $$A=\begin{bmatrix} 3 & x-1 \\ 2x+3 & x+2 \end{bmatrix}$$ is symmetric matrix then the value of $$x$$ is

What is the output order for the following matrix multiplication $$A_{2 \times 1}\times B_{1\times 2}$$?