Mathematics 9 (Complete Solutions)

Q1
Which of the following product of matrices is conformable for multiplication?

(i)  
 
1 -1
0 2
 
 
-2
3
 
(ii)  
 
1 -1
1 0
 
 
2 -1
1 3
 
(iii)  
 
1
-1
 
 
0 1
-1 2
 
(iv)  
 
1 2
0 -1
-1 -2
 
 
1 0 -1
0 1 2
 
(v)  
 
3 2 1
0 1 -1
 
 
1 -1
0 2
-2 3
 


Answers

(i), (ii), (iv) and (iv) are conformable for multiplication.

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