R S Aggarwal Solutions for Exercise 1: EXERCISE

If the order of the matrix $B=\left[\begin{array}{cc}6& -5\\ \frac{1}{2}& \frac{3}{4}\\ -2& -1\end{array}\right]$ is $a\times b$, then find $a-b$.

If the order of the matrix $C=\left[\begin{array}{lll}7-\sqrt{2}& 5& 0\end{array}\right]$ is $a\times b$, then find $a-b$.

If the order of the matrix $D=\left[\begin{array}{cc}8& -3\end{array}\right]$ is $a\times b$, then find $a-b$.

If the order of the matrix $E=\left[\begin{array}{c}-2\\ 3\\ 0\end{array}\right]$ is $a\times b$, then find $a-b$.

If the order of the matrix $F=\left[\begin{array}{c}6\end{array}\right]$ is $a\times b$, then find $a-b$.

If a matrix has $18$ elements, what are the possible orders it can have?

Find all possible orders of matrices having $7$ elements.

Construct a $3\times 2$ matrix whose elements are given by $a_{ij}=(2i-j)$.