Mathematics
Order of a matrix
आव्यूह का क्रम
In this Class 12 Mathematics topic from the Matrix chapter, students learn that the order of a matrix describes its size as the number of rows × number of columns, written m × n. They practise identifying rows and columns, writing the order of a given matrix, and recognising when two matrices have the same order. Examples help distinguish square, row, and column matrices, while reinforcing that order depends on arrangement—not on the values of the entries. This foundation supports later work with matrix operations and equality.
Practice questions
What is the order of the matrix \(A=\begin{bmatrix}1&2&3\\4&5&6\end{bmatrix}\)?How many rows are there in the matrix \(A=\begin{bmatrix}1&2\\3&4\\5&6\end{bmatrix}\)?How many columns does the matrix \(A=\begin{bmatrix}1&2&3&4\\5&6&7&8\\\end{bmatrix}\) have?If a matrix has order \(m\times n\), how many elements does it contain?If a matrix has 15 elements and 3 rows, how many columns does it have?If a matrix has 24 elements and 6 columns, how many rows does it have?How many elements are there in a \(1\times1\) matrix?What is the order of the matrix A = \begin{bmatrix}2&3&4\end{bmatrix}?What is the order of \(A=\begin{bmatrix}2\\3\\4\\5\end{bmatrix}\)?