Scroll:matrices >> find the value 3 row 3 col >> ps (4142)


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)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
515
2-25
363
 
,B = 
344
657
144
 
and C= 
43-2
603
2-13
 

(A+B) + C = 




Answer:_______________




2)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
315
3-24
454
 
,B = 
133
536
146
 
and C= 
25-2
605
3-13
 

(A+B) + C = 




Answer:_______________




3)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
422
2-23
255
 
,B = 
322
858
254
 
and C= 
45-2
705
1-12
 

(A+B) + C = 




Answer:_______________




4)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
223
3-26
363
 
,B = 
232
448
174
 
and C= 
35-1
604
1-13
 

(A+B) + C = 




Answer:_______________




5)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
424
3-23
054
 
,B = 
443
848
446
 
and C= 
42-2
402
3-11
 

(A+B) + C = 




Answer:_______________




6)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
422
2-22
443
 
,B = 
224
648
455
 
and C= 
13-1
703
2-12
 

(A+B) + C = 




Answer:_______________




7)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
333
4-24
335
 
,B = 
252
756
164
 
and C= 
22-2
704
1-13
 

(A+B) + C = 




Answer:_______________




8)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
323
4-24
344
 
,B = 
442
748
454
 
and C= 
44-2
504
3-13
 

(A+B) + C = 




Answer:_______________




9)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
413
4-26
254
 
,B = 
332
447
245
 
and C= 
33-3
305
3-13
 

(A+B) + C = 




Answer:_______________




10)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
514
4-22
063
 
,B = 
322
856
275
 
and C= 
43-3
605
3-13
 

(A+B) + C = 




Answer:_______________




 

1)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
515
2-25
363
 
,B = 
344
657
144
 
and C= 
43-2
603
2-13
 

(A+B) + C = 


Answer: 12 Answer: 8 Answer: 7
Answer: 14 Answer: 3 Answer: 15
Answer: 6 Answer: 9 Answer: 10


SOLUTION 1 :
B+C = 
344
657
144
 
+
43-2
603
2-13
= 
772
12510
337
 
 
A+(B+C)=
515
2-25
363
+
772
12510
337
= 
1287
14315
6910
 
...(1)
A+B
515
2-25
363
+
344
657
144
= 
859
8312
4107
 
 
(A+B)+C
859
8312
4107
+
43-2
603
2-13
=
1287
14315
6910
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
1287
14315
6910


 

 



2)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
315
3-24
454
 
,B = 
133
536
146
 
and C= 
25-2
605
3-13
 

(A+B) + C = 


Answer: 6 Answer: 9 Answer: 6
Answer: 14 Answer: 1 Answer: 15
Answer: 8 Answer: 8 Answer: 13


SOLUTION 1 :
B+C = 
133
536
146
 
+
25-2
605
3-13
= 
381
11311
439
 
 
A+(B+C)=
315
3-24
454
+
381
11311
439
= 
696
14115
8813
 
...(1)
A+B
315
3-24
454
+
133
536
146
= 
448
8110
5910
 
 
(A+B)+C
448
8110
5910
+
25-2
605
3-13
=
696
14115
8813
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
696
14115
8813


 

 



3)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
422
2-23
255
 
,B = 
322
858
254
 
and C= 
45-2
705
1-12
 

(A+B) + C = 


Answer: 11 Answer: 9 Answer: 2
Answer: 17 Answer: 3 Answer: 16
Answer: 5 Answer: 9 Answer: 11


SOLUTION 1 :
B+C = 
322
858
254
 
+
45-2
705
1-12
= 
770
15513
346
 
 
A+(B+C)=
422
2-23
255
+
770
15513
346
= 
1192
17316
5911
 
...(1)
A+B
422
2-23
255
+
322
858
254
= 
744
10311
4109
 
 
(A+B)+C
744
10311
4109
+
45-2
705
1-12
=
1192
17316
5911
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
1192
17316
5911


 

 



4)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
223
3-26
363
 
,B = 
232
448
174
 
and C= 
35-1
604
1-13
 

(A+B) + C = 


Answer: 7 Answer: 10 Answer: 4
Answer: 13 Answer: 2 Answer: 18
Answer: 5 Answer: 12 Answer: 10


SOLUTION 1 :
B+C = 
232
448
174
 
+
35-1
604
1-13
= 
581
10412
267
 
 
A+(B+C)=
223
3-26
363
+
581
10412
267
= 
7104
13218
51210
 
...(1)
A+B
223
3-26
363
+
232
448
174
= 
455
7214
4137
 
 
(A+B)+C
455
7214
4137
+
35-1
604
1-13
=
7104
13218
51210
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
7104
13218
51210


 

 



5)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
424
3-23
054
 
,B = 
443
848
446
 
and C= 
42-2
402
3-11
 

(A+B) + C = 


Answer: 12 Answer: 8 Answer: 5
Answer: 15 Answer: 2 Answer: 13
Answer: 7 Answer: 8 Answer: 11


SOLUTION 1 :
B+C = 
443
848
446
 
+
42-2
402
3-11
= 
861
12410
737
 
 
A+(B+C)=
424
3-23
054
+
861
12410
737
= 
1285
15213
7811
 
...(1)
A+B
424
3-23
054
+
443
848
446
= 
867
11211
4910
 
 
(A+B)+C
867
11211
4910
+
42-2
402
3-11
=
1285
15213
7811
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
1285
15213
7811


 

 



6)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
422
2-22
443
 
,B = 
224
648
455
 
and C= 
13-1
703
2-12
 

(A+B) + C = 


Answer: 7 Answer: 7 Answer: 5
Answer: 15 Answer: 2 Answer: 13
Answer: 10 Answer: 8 Answer: 10


SOLUTION 1 :
B+C = 
224
648
455
 
+
13-1
703
2-12
= 
353
13411
647
 
 
A+(B+C)=
422
2-22
443
+
353
13411
647
= 
775
15213
10810
 
...(1)
A+B
422
2-22
443
+
224
648
455
= 
646
8210
898
 
 
(A+B)+C
646
8210
898
+
13-1
703
2-12
=
775
15213
10810
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
775
15213
10810


 

 



7)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
333
4-24
335
 
,B = 
252
756
164
 
and C= 
22-2
704
1-13
 

(A+B) + C = 


Answer: 7 Answer: 10 Answer: 3
Answer: 18 Answer: 3 Answer: 14
Answer: 5 Answer: 8 Answer: 12


SOLUTION 1 :
B+C = 
252
756
164
 
+
22-2
704
1-13
= 
470
14510
257
 
 
A+(B+C)=
333
4-24
335
+
470
14510
257
= 
7103
18314
5812
 
...(1)
A+B
333
4-24
335
+
252
756
164
= 
585
11310
499
 
 
(A+B)+C
585
11310
499
+
22-2
704
1-13
=
7103
18314
5812
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
7103
18314
5812


 

 



8)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
323
4-24
344
 
,B = 
442
748
454
 
and C= 
44-2
504
3-13
 

(A+B) + C = 


Answer: 11 Answer: 10 Answer: 3
Answer: 16 Answer: 2 Answer: 16
Answer: 10 Answer: 8 Answer: 11


SOLUTION 1 :
B+C = 
442
748
454
 
+
44-2
504
3-13
= 
880
12412
747
 
 
A+(B+C)=
323
4-24
344
+
880
12412
747
= 
11103
16216
10811
 
...(1)
A+B
323
4-24
344
+
442
748
454
= 
765
11212
798
 
 
(A+B)+C
765
11212
798
+
44-2
504
3-13
=
11103
16216
10811
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
11103
16216
10811


 

 



9)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
413
4-26
254
 
,B = 
332
447
245
 
and C= 
33-3
305
3-13
 

(A+B) + C = 


Answer: 10 Answer: 7 Answer: 2
Answer: 11 Answer: 2 Answer: 18
Answer: 7 Answer: 8 Answer: 12


SOLUTION 1 :
B+C = 
332
447
245
 
+
33-3
305
3-13
= 
66-1
7412
538
 
 
A+(B+C)=
413
4-26
254
+
66-1
7412
538
= 
1072
11218
7812
 
...(1)
A+B
413
4-26
254
+
332
447
245
= 
745
8213
499
 
 
(A+B)+C
745
8213
499
+
33-3
305
3-13
=
1072
11218
7812
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
1072
11218
7812


 

 



10)  

 Verify that A+ (B+C) = (A+B) + C

If A = 
514
4-22
063
 
,B = 
322
856
275
 
and C= 
43-3
605
3-13
 

(A+B) + C = 


Answer: 12 Answer: 6 Answer: 3
Answer: 18 Answer: 3 Answer: 13
Answer: 5 Answer: 12 Answer: 11


SOLUTION 1 :
B+C = 
322
856
275
 
+
43-3
605
3-13
= 
75-1
14511
568
 
 
A+(B+C)=
514
4-22
063
+
75-1
14511
568
= 
1263
18313
51211
 
...(1)
A+B
514
4-22
063
+
322
856
275
= 
836
1238
2138
 
 
(A+B)+C
836
1238
2138
+
43-3
605
3-13
=
1263
18313
51211
....(2)

From (1) and (2) we have

A+ (B+C) = (A+B) +C.

(A+B)+C
1263
18313
51211