Question

Consider the Matrix shown below:

Answer 1

Answer:

The value of  $B_{2,4}$ - $B_{3,2}$  is 3 ⇒ 2nd

Step-by-step explanation:

The dimensions of any matrix are (m × n), where

• m is the number of its row
• n is the number of its column

Ex: Matrix A of dimensions (2 × 3) has 2 rows and 3 columns, where

$A_{1,1}$ means the element in the 1st row and 1st column

$A_{1,2}$ means the element in the 1st row and 2nd column

$A_{1,3}$ means the element in the 1st row and 3rd column

$A_{2,1}$ means the element in the 2nd row and 1st column

$A_{2,2}$ means the element in the 2nd row and 2nd column

$A_{2,3}$ means the element in the 2nd row and 3rd column

Now lets solve the problem

∵ The matrix B has 3 rows

∴ m = 3

∵ The matrix B has 4 columns

∴ n = 4

∴ The dimensions of matrix B are (3 × 4)

∵ $B_{2,4}$ means the element in the 2nd row and 4th column

∴  $B_{2,4}$ = 9

∵ $B_{3,2}$ means the element in the 3rd row and 2nd column

∴  $B_{3,2}$ = 6

- Find the value of $B_{2,4}$ - $B_{3,2}$

∵ $B_{2,4}$ - $B_{3,2}$ = 9 - 6

∴ $B_{2,4}$ - $B_{3,2}$ = 3