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Pure Mathematics
 Online Tutoring : Quiz : Pure Mathematics
Multiplication of a 2x2 matrix and a 2x1 matrix Check your score
  Play           Question 57 of 58 in this category.    

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 created by Zach on 26 June 2005 at 3:56pm

 
 

 


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2x2 matrix multiplies 2x1 matrix


-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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