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Pure Mathematics
 Online Tutoring : Forum : Quiz Questions - Mathematics : Pure Mathematics
Topic Topic: 2x2 matrix multiplies 2x1 matrix Post ReplyNew Question
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System
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Joined: 26 June 2005
Posts: 918
Posted: 26 June 2005 at 5:01pm | IP Logged Quote System

QUIZ QUESTION #8
Find the product of these two matrices:
 
-2 0
4 5
 
-1
3
  =  ?
 
 
    A.  
14
15

 
 
    B.    
2 11

 
 
    C.    
14 15

 
 
    D.  
2 0
-4 15

 
 
    E.  
2
11

 
 
 QUIZ QUESTION #8 created by Zach on 26 June 2005 at 3:56pm

Correct answer: E    Correct clicks: 46.13%  Wrong clicks: 53.87%
 
    A.   [546 clicks 22.37%] 
 
    B.   [314 clicks 12.86%] 
 
    C.   [97 clicks 3.97%] 
 
    D.   [358 clicks 14.67%] 
 
    E.   [1126 clicks 46.13%] 
 
Please discuss this quiz question.
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Tutor9688
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Joined: 13 August 2005
Location: Malaysia
Posts: 18
Posted: 13 August 2005 at 11:00pm | IP Logged Quote Tutor9688

-2 0      -1

 4 5       3

 

 (-2)(-1) + (0)(3)

 (4)(-1) + (5)(3)

 

 2 + 0 =2

 -4 + 15 = 11

so answer is 2

                  11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Tutor9688
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Joined: 13 August 2005
Location: Malaysia
Posts: 18
Posted: 15 August 2005 at 9:18pm | IP Logged Quote Tutor9688

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