Question

8. If (i) find the order of the matrix (ii) write down the elements
a24 and a32 (iii) in which row and column does the element 7 occur?

Answer 1

Matrix :
A matrix is a rectangular array of numbers in rows and columns enclosed within square brackets or parenthesis.

•Order or dimension of a matrix :
If a matrix A has m rows and n columns, then we say that the order of A is m×n.
•In a m× n matrix, the first letter m always denotes the number of rows and the second letter n always denotes the number of columns.

SOLUTION :
i) The order of matrix A is 3 ×4.
ii) SOLUTION IS IN THE ATTACHMENT.
iii) The element 7 occurs in 2nd row & 3rd column.

HOPE THIS WILL HELP YOU...

Answer 2

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Order of the matrix :

If there are 'm' rows and 'n' columns

in a matrix , then it is called m × n

matrix , m×n is the order of the matrix .

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Here ,

i ) Order of A = 3 × 4

ii ) element a24 = element in second

row and fourth column

= 4

Element a32 = 0

iii ) 7 occur in second row third column

= a23

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