Multiplying matrices

[frctl]

Given


AB =
67 41 41
64 21 59
63 67 57

Why do I obtain the wrong answer for BA
BA =
46 14 38
21 22 18
56 28 74

 

[Deleted member 4993]

BA =
46 14 38
21 22 18
56 28 74

How did you get that?!

It should be:
6*3 + (-2)*6 + 4*0

Fix other numbers accordingly!

 

[frctl]

thank you I have fixed

 

[Deleted member 4993]

thank you I have fixed

What matrix did you get for BA?

 

[frctl]

6 -6 70
6 17 31
63 41 122

 

[Otis]

… Why do I obtain the wrong answer …

Really?

Asking people to find mistakes in your work doesn't make much sense, frctl, when you post no work! (I think you've been asked 10 times to follow the guidelines. If you're unwilling to do that, maybe you should go somewhere else for help.)

 

[Otis]

6 -6 70
6 17 31
63 41 122

That is correct for B*A.

\(\;\)

 

[frctl]

Thank you