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Home » In the matrix Write (i) The order of the matrix, (ii) The number of elements, (iii) Write the elements
In the matrix A \left[\begin{array}{cccc}2 & 5 & 19 & -7 \\ 35 & -2 & \frac{5}{2} & 12 \\ \sqrt{3} & 1 & -5 & 17\end{array}\right] Write (i) The order of the matrix, (ii) The number of elements, (iii) Write the elements \mathbf{a}_{13}, \mathbf{a}_{21}, \mathbf{a}_{33}, \mathbf{a}_{24}, \mathbf{a}_{23} .
CBSE | Class 12 | Exercise 3.1 | Maths | Matrices | NCERT
In the matrix A \left[\begin{array}{cccc}2 & 5 & 19 & -7 \\ 35 & -2 & \frac{5}{2} & 12 \\ \sqrt{3} & 1 & -5 & 17\end{array}\right] Write (i) The order of the matrix, (ii) The number of elements, (iii) Write the elements \mathbf{a}_{13}, \mathbf{a}_{21}, \mathbf{a}_{33}, \mathbf{a}_{24}, \mathbf{a}_{23} .

(i) In given matrix,

Number of rows =3

Number of column =4

Order of the matrix is 3 \times 4

(ii) The number of elements in the matrix A is 3 \times 4=12.

(iii) \mathrm{a}_{13}= element in first row and third column =19

a_{21}= element in second row and first column =35

a_{33}= element in third row and third column =-5

a_{24}= element in second row and fourth column =12

a_{23}= element in second row and third column =5 / 2

i

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