Scroll:matrices >> Solve an equation >> ps (4140)


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= 
24
44
 
B= 
2-1
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
33
43
 
B= 
2-2
52
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
65
34
 
B= 
4-3
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
35
33
 
B= 
4-2
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
34
25
 
B= 
4-2
25
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
63
32
 
B= 
1-4
42
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
26
41
 
B= 
2-4
44
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
66
44
 
B= 
3-2
53
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
16
24
 
B= 
2-2
53
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
65
21
 
B= 
1-3
24
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
24
44
 
B= 
2-1
52
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 7
Answer: 13 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
24
44
 
B =  
2 -1
5 2
 

=  

2A = 2 
24
44
 
= 
48
88
 

C = 2A + B

C = 
48
88
 
+ 
2-1
52
 
= 
67
1310
 

C = 

 
67
1310
 

 



2)  

If

A= 
33
43
 
B= 
2-2
52
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 4
Answer: 13 Answer: 8


SOLUTION 1 :

 

 
A
 
=  
33
43
 
B =  
2 -2
5 2
 

=  

2A = 2 
33
43
 
= 
66
86
 

C = 2A + B

C = 
66
86
 
+ 
2-2
52
 
= 
84
138
 

C = 

 
84
138
 

 



3)  

If

A= 
65
34
 
B= 
4-3
33
 
Find the matric         C = 2A + B

C =


 
Answer: 16 Answer: 7
Answer: 9 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
65
34
 
B =  
4 -3
3 3
 

=  

2A = 2 
65
34
 
= 
1210
68
 

C = 2A + B

C = 
1210
68
 
+ 
4-3
33
 
= 
167
911
 

C = 

 
167
911
 

 



4)  

If

A= 
35
33
 
B= 
4-2
24
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 8
Answer: 8 Answer: 10


SOLUTION 1 :

 

 
A
 
=  
35
33
 
B =  
4 -2
2 4
 

=  

2A = 2 
35
33
 
= 
610
66
 

C = 2A + B

C = 
610
66
 
+ 
4-2
24
 
= 
108
810
 

C = 

 
108
810
 

 



5)  

If

A= 
34
25
 
B= 
4-2
25
 
Find the matric         C = 2A + B

C =


 
Answer: 10 Answer: 6
Answer: 6 Answer: 15


SOLUTION 1 :

 

 
A
 
=  
34
25
 
B =  
4 -2
2 5
 

=  

2A = 2 
34
25
 
= 
68
410
 

C = 2A + B

C = 
68
410
 
+ 
4-2
25
 
= 
106
615
 

C = 

 
106
615
 

 



6)  

If

A= 
63
32
 
B= 
1-4
42
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 2
Answer: 10 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
63
32
 
B =  
1 -4
4 2
 

=  

2A = 2 
63
32
 
= 
126
64
 

C = 2A + B

C = 
126
64
 
+ 
1-4
42
 
= 
132
106
 

C = 

 
132
106
 

 



7)  

If

A= 
26
41
 
B= 
2-4
44
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 8
Answer: 12 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
26
41
 
B =  
2 -4
4 4
 

=  

2A = 2 
26
41
 
= 
412
82
 

C = 2A + B

C = 
412
82
 
+ 
2-4
44
 
= 
68
126
 

C = 

 
68
126
 

 



8)  

If

A= 
66
44
 
B= 
3-2
53
 
Find the matric         C = 2A + B

C =


 
Answer: 15 Answer: 10
Answer: 13 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
66
44
 
B =  
3 -2
5 3
 

=  

2A = 2 
66
44
 
= 
1212
88
 

C = 2A + B

C = 
1212
88
 
+ 
3-2
53
 
= 
1510
1311
 

C = 

 
1510
1311
 

 



9)  

If

A= 
16
24
 
B= 
2-2
53
 
Find the matric         C = 2A + B

C =


 
Answer: 4 Answer: 10
Answer: 9 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
16
24
 
B =  
2 -2
5 3
 

=  

2A = 2 
16
24
 
= 
212
48
 

C = 2A + B

C = 
212
48
 
+ 
2-2
53
 
= 
410
911
 

C = 

 
410
911
 

 



10)  

If

A= 
65
21
 
B= 
1-3
24
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 7
Answer: 6 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
65
21
 
B =  
1 -3
2 4
 

=  

2A = 2 
65
21
 
= 
1210
42
 

C = 2A + B

C = 
1210
42
 
+ 
1-3
24
 
= 
137
66
 

C = 

 
137
66