Question

MATRICES
If A and B are matrices of order 3 × and × 5 respectively, then find the

order of matrix 5A – 3B, given that it is defined.​

Answer 1

Answer:

the order of matrix is 3×5

Answer 2

Answer:   A and B are matrices of order 3 × and × 5 respectively

To Find :   the  order of matrix 5A – 3B, given that it is defined.​

Solution:

Let say order of Matrix A  = 3 x  m

order of Matrix  B   = n  x  5

5A  Matrix order =  3 x  m

3B  Matrix order  = n x  5

5A – 3B  is Defined

Hence order of matrix of 5A & 3B would be same

Hence   3 x m  = n  x  5  

3 = n

m = 5  

5A  Matrix order =  3 x  5

3B  Matrix order = 3 x 5

Hence order of matrix 5A – 3B   = 3 x 5  

Learn More:

(d)If A is a matrix of order 3x4 and B is a matrix of order 4x5,what is ...

https://brainly.in/question/9785304

1. If X andY are two matrices of order 2 X n and 3 X k respectively ...

https://brainly.in/question/17796805