Scroll:matrices >> matrix equation >> ps (4139)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

 If A 

 
5 5
9 9
 
-  
2 1
2 2
 

Then find the additive inverse of A




Answer:_______________




2)  

 If A 

 
6 9
9 8
 
-  
1 3
3 5
 

Then find the additive inverse of A




Answer:_______________




3)  

 If A 

 
6 8
8 8
 
-  
4 3
4 2
 

Then find the additive inverse of A




Answer:_______________




4)  

 If A 

 
5 7
9 6
 
-  
4 4
5 3
 

Then find the additive inverse of A




Answer:_______________




5)  

 If A 

 
6 7
7 9
 
-  
1 2
2 5
 

Then find the additive inverse of A




Answer:_______________




6)  

 If A 

 
5 6
7 6
 
-  
1 3
5 3
 

Then find the additive inverse of A




Answer:_______________




7)  

 If A 

 
6 7
8 7
 
-  
3 4
3 2
 

Then find the additive inverse of A




Answer:_______________




8)  

 If A 

 
6 5
6 6
 
-  
3 3
5 1
 

Then find the additive inverse of A




Answer:_______________




9)  

 If A 

 
5 6
8 9
 
-  
1 1
2 3
 

Then find the additive inverse of A




Answer:_______________




10)  

 If A 

 
6 6
7 9
 
-  
4 4
3 2
 

Then find the additive inverse of A




Answer:_______________




 

1)  

 If A 

 
5 5
9 9
 
-  
2 1
2 2
 

Then find the additive inverse of A


Answer: -3 Answer: -4
Answer: -7 Answer: -7


SOLUTION 1 :

 

 
A
 
=  
55
99
 
-  
2 1
2 2
 

=  

 
5-25-1
9-29-2
 
= 
34
77
 

Additive inverse of A is - A

- A =  

-3-4
-7-7

 



2)  

 If A 

 
6 9
9 8
 
-  
1 3
3 5
 

Then find the additive inverse of A


Answer: -5 Answer: -6
Answer: -6 Answer: -3


SOLUTION 1 :

 

 
A
 
=  
69
98
 
-  
1 3
3 5
 

=  

 
6-19-3
9-38-5
 
= 
56
63
 

Additive inverse of A is - A

- A =  

-5-6
-6-3

 



3)  

 If A 

 
6 8
8 8
 
-  
4 3
4 2
 

Then find the additive inverse of A


Answer: -2 Answer: -5
Answer: -4 Answer: -6


SOLUTION 1 :

 

 
A
 
=  
68
88
 
-  
4 3
4 2
 

=  

 
6-48-3
8-48-2
 
= 
25
46
 

Additive inverse of A is - A

- A =  

-2-5
-4-6

 



4)  

 If A 

 
5 7
9 6
 
-  
4 4
5 3
 

Then find the additive inverse of A


Answer: -1 Answer: -3
Answer: -4 Answer: -3


SOLUTION 1 :

 

 
A
 
=  
57
96
 
-  
4 4
5 3
 

=  

 
5-47-4
9-56-3
 
= 
13
43
 

Additive inverse of A is - A

- A =  

-1-3
-4-3

 



5)  

 If A 

 
6 7
7 9
 
-  
1 2
2 5
 

Then find the additive inverse of A


Answer: -5 Answer: -5
Answer: -5 Answer: -4


SOLUTION 1 :

 

 
A
 
=  
67
79
 
-  
1 2
2 5
 

=  

 
6-17-2
7-29-5
 
= 
55
54
 

Additive inverse of A is - A

- A =  

-5-5
-5-4

 



6)  

 If A 

 
5 6
7 6
 
-  
1 3
5 3
 

Then find the additive inverse of A


Answer: -4 Answer: -3
Answer: -2 Answer: -3


SOLUTION 1 :

 

 
A
 
=  
56
76
 
-  
1 3
5 3
 

=  

 
5-16-3
7-56-3
 
= 
43
23
 

Additive inverse of A is - A

- A =  

-4-3
-2-3

 



7)  

 If A 

 
6 7
8 7
 
-  
3 4
3 2
 

Then find the additive inverse of A


Answer: -3 Answer: -3
Answer: -5 Answer: -5


SOLUTION 1 :

 

 
A
 
=  
67
87
 
-  
3 4
3 2
 

=  

 
6-37-4
8-37-2
 
= 
33
55
 

Additive inverse of A is - A

- A =  

-3-3
-5-5

 



8)  

 If A 

 
6 5
6 6
 
-  
3 3
5 1
 

Then find the additive inverse of A


Answer: -3 Answer: -2
Answer: -1 Answer: -5


SOLUTION 1 :

 

 
A
 
=  
65
66
 
-  
3 3
5 1
 

=  

 
6-35-3
6-56-1
 
= 
32
15
 

Additive inverse of A is - A

- A =  

-3-2
-1-5

 



9)  

 If A 

 
5 6
8 9
 
-  
1 1
2 3
 

Then find the additive inverse of A


Answer: -4 Answer: -5
Answer: -6 Answer: -6


SOLUTION 1 :

 

 
A
 
=  
56
89
 
-  
1 1
2 3
 

=  

 
5-16-1
8-29-3
 
= 
45
66
 

Additive inverse of A is - A

- A =  

-4-5
-6-6

 



10)  

 If A 

 
6 6
7 9
 
-  
4 4
3 2
 

Then find the additive inverse of A


Answer: -2 Answer: -2
Answer: -4 Answer: -7


SOLUTION 1 :

 

 
A
 
=  
66
79
 
-  
4 4
3 2
 

=  

 
6-46-4
7-39-2
 
= 
22
47
 

Additive inverse of A is - A

- A =  

-2-2
-4-7