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= 
34
44
 
B= 
1-3
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




2)  

If

A= 
34
25
 
B= 
2-4
45
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




3)  

If

A= 
33
21
 
B= 
2-4
54
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




4)  

If

A= 
16
44
 
B= 
2-2
35
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




5)  

If

A= 
26
41
 
B= 
2-2
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




6)  

If

A= 
65
21
 
B= 
1-2
34
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




7)  

If

A= 
35
34
 
B= 
1-2
43
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




8)  

If

A= 
53
21
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




9)  

If

A= 
15
21
 
B= 
4-1
33
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




10)  

If

A= 
66
45
 
B= 
2-1
21
 
Find the matric         C = 2A + B

C =


 


Answer:_______________




 

1)  

If

A= 
34
44
 
B= 
1-3
33
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 5
Answer: 11 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
34
44
 
B =  
1 -3
3 3
 

=  

2A = 2 
34
44
 
= 
68
88
 

C = 2A + B

C = 
68
88
 
+ 
1-3
33
 
= 
75
1111
 

C = 

 
75
1111
 

 



2)  

If

A= 
34
25
 
B= 
2-4
45
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 4
Answer: 8 Answer: 15


SOLUTION 1 :

 

 
A
 
=  
34
25
 
B =  
2 -4
4 5
 

=  

2A = 2 
34
25
 
= 
68
410
 

C = 2A + B

C = 
68
410
 
+ 
2-4
45
 
= 
84
815
 

C = 

 
84
815
 

 



3)  

If

A= 
33
21
 
B= 
2-4
54
 
Find the matric         C = 2A + B

C =


 
Answer: 8 Answer: 2
Answer: 9 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
33
21
 
B =  
2 -4
5 4
 

=  

2A = 2 
33
21
 
= 
66
42
 

C = 2A + B

C = 
66
42
 
+ 
2-4
54
 
= 
82
96
 

C = 

 
82
96
 

 



4)  

If

A= 
16
44
 
B= 
2-2
35
 
Find the matric         C = 2A + B

C =


 
Answer: 4 Answer: 10
Answer: 11 Answer: 13


SOLUTION 1 :

 

 
A
 
=  
16
44
 
B =  
2 -2
3 5
 

=  

2A = 2 
16
44
 
= 
212
88
 

C = 2A + B

C = 
212
88
 
+ 
2-2
35
 
= 
410
1113
 

C = 

 
410
1113
 

 



5)  

If

A= 
26
41
 
B= 
2-2
32
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 10
Answer: 11 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
26
41
 
B =  
2 -2
3 2
 

=  

2A = 2 
26
41
 
= 
412
82
 

C = 2A + B

C = 
412
82
 
+ 
2-2
32
 
= 
610
114
 

C = 

 
610
114
 

 



6)  

If

A= 
65
21
 
B= 
1-2
34
 
Find the matric         C = 2A + B

C =


 
Answer: 13 Answer: 8
Answer: 7 Answer: 6


SOLUTION 1 :

 

 
A
 
=  
65
21
 
B =  
1 -2
3 4
 

=  

2A = 2 
65
21
 
= 
1210
42
 

C = 2A + B

C = 
1210
42
 
+ 
1-2
34
 
= 
138
76
 

C = 

 
138
76
 

 



7)  

If

A= 
35
34
 
B= 
1-2
43
 
Find the matric         C = 2A + B

C =


 
Answer: 7 Answer: 8
Answer: 10 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
35
34
 
B =  
1 -2
4 3
 

=  

2A = 2 
35
34
 
= 
610
68
 

C = 2A + B

C = 
610
68
 
+ 
1-2
43
 
= 
78
1011
 

C = 

 
78
1011
 

 



8)  

If

A= 
53
21
 
B= 
1-1
32
 
Find the matric         C = 2A + B

C =


 
Answer: 11 Answer: 5
Answer: 7 Answer: 4


SOLUTION 1 :

 

 
A
 
=  
53
21
 
B =  
1 -1
3 2
 

=  

2A = 2 
53
21
 
= 
106
42
 

C = 2A + B

C = 
106
42
 
+ 
1-1
32
 
= 
115
74
 

C = 

 
115
74
 

 



9)  

If

A= 
15
21
 
B= 
4-1
33
 
Find the matric         C = 2A + B

C =


 
Answer: 6 Answer: 9
Answer: 7 Answer: 5


SOLUTION 1 :

 

 
A
 
=  
15
21
 
B =  
4 -1
3 3
 

=  

2A = 2 
15
21
 
= 
210
42
 

C = 2A + B

C = 
210
42
 
+ 
4-1
33
 
= 
69
75
 

C = 

 
69
75
 

 



10)  

If

A= 
66
45
 
B= 
2-1
21
 
Find the matric         C = 2A + B

C =


 
Answer: 14 Answer: 11
Answer: 10 Answer: 11


SOLUTION 1 :

 

 
A
 
=  
66
45
 
B =  
2 -1
2 1
 

=  

2A = 2 
66
45
 
= 
1212
810
 

C = 2A + B

C = 
1212
810
 
+ 
2-1
21
 
= 
1411
1011
 

C = 

 
1411
1011