+0  
 
+1
139
6
avatar+1489 

 

Im unsure how you would multpy the second one since it doesnt have the same dimensions and for the first question i am completely confused.

 Sep 18, 2019
 #1
avatar+23866 
+3

Questions 2:

 

 

laugh

 Sep 18, 2019
 #4
avatar+1489 
+2

Thank you.smiley

jjennylove  Sep 18, 2019
 #2
avatar+106535 
+2

2)

B  = 2 x 2     C =  2 x 3

 

So

 

B * C  =      [ 2 x 2 ] * [ 2 x 3 ]      the "inner" dimensions are the same  so the result will be the "outer" dimensions  =

2 x 3  =  2 rows  and 3 columns

 

So  we have

 

[ -4  2  ]         x      [ 0  4  -1   ]     =          [ (-4 * 0 + 2 * 3)   ( -4*4  + 2*0)   ( -4*-1 + 2*1)  ]   =

[  0  5  ]                 [ 3   0   1  ]                  [ ( 0*0 + 5*3  )      (0*4 + 5*0)     ( 0*-1 + 5* 1)  ]   

 

 

[  6   - 16    6  ]

[ 15     0     5  ]

 

 

cool cool cool              

 Sep 18, 2019
 #3
avatar+1489 
+1

Thank you of your help.smiley

jjennylove  Sep 18, 2019
 #5
avatar+1489 
+1

do you know where i can find info on the first question?

jjennylove  Sep 18, 2019
 #6
avatar+106535 
+1

 

 

For the first part.....I believe  "m"  = 16/3

 

But....I don't understand the second part of the question, at all....I haven't seen something like this before

 

 

cool cool cool

CPhill  Sep 18, 2019

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