CUET Preparation Today
If [1 2 3] A =[4 5], then the order of matrix A is : |
$2×3$ $2×1$ $3×2$ $3×1$ |
$3×2$ |
The correct answer is Option (3) → $3×2$ $\begin{bmatrix}1&2&3\end{bmatrix}_{1×3}$ $A_{p×q}=\begin{bmatrix}4&5\end{bmatrix}_{1×2}$ from this we infer that $p=3$ and $q=2$ so order (A) = $p×q$ $=3×2$ |
