Email
Chat with tutor
logo

Ask Questions, Get Answers

X
 
Questions  >>  CBSE XII  >>  Math  >>  Matrices
Answer
Comment
Share
Q)

If a matrix has 24 elements,what are the possible orders it can have? What, if it has 13 elements?

1 Answer

Comment
A)
Toolbox:
  • If a matrix is of order $m\times n.$
  • So the element of the matrix is $m\times n.$
  • So we have to find all possible order of a matrix with 24 elements.
$\Rightarrow$ Find all ordered pair of natural numbers whose product 24.
 
$\Rightarrow$ All possible ordered pairs are (1,24),(24,1),(12,2),(2,12),(8,3),(3,8),(6,4),(4,6).
 
Hence the possible orders are $1\times 24,2\times12,12\times 2,8\times 3,3 \times 8,6\times 4,4\times 6.$
 
If it has 13 elements the possible order are $1\times13,13\times 1.$
 
In the above case two types of matrices are formed
 
(i)Row matrix:
 
a matrix is said to be row of it has only one row.
 
$B=[b_{ij}]_{1\times n}$ is a row matrix of order $1\times n.$
 
$\Rightarrow 1\times 13\rightarrow$ The order is $1\times 13.$
 
(ii)Column matrix:
 
A matrix is said to be a column matrix if it has only one column.
 
A=$[a_{ij}]{m\times 1}$ is a column of matrix of order $m\times 1.$
 
$\Rightarrow$ The order is $13\times 1$

 

Help Clay6 to be free
Clay6 needs your help to survive. We have roughly 7 lakh students visiting us monthly. We want to keep our services free and improve with prompt help and advanced solutions by adding more teachers and infrastructure.

A small donation from you will help us reach that goal faster. Talk to your parents, teachers and school and spread the word about clay6. You can pay online or send a cheque.

Thanks for your support.
Continue
Please choose your payment mode to continue
Home Ask Homework Questions
Your payment for is successful.
Continue
Clay6 tutors use Telegram* chat app to help students with their questions and doubts.
Do you have the Telegram chat app installed?
Already installed Install now
*Telegram is a chat app like WhatsApp / Facebook Messenger / Skype.
...