Mathematics 9 (Complete Solutions)

Q4
Find the negative of matrices A, B, C, D and E when:

A =
 
1
0
-1
 
B =
 
3 -1
2 1
 
C =
 
2 6
3 2
 
D =
 
-3 2
-4 5
 
E =
 
1 -5
2 3
 



Answer
A =
 
-1
0
1
 
B =
 
-3 1
-2 -1
 
C =
 
-2 -6
-3 -2
 
D =
 
3 -2
4 -5
 
E =
 
-1 5
-2 -3
 

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