## smarty 3 years ago Multiply the following Matrices.

1. smarty

|dw:1340306136689:dw|

2. RomeoRaj

plz give a clear image of the marices...

3. smarty

First matrix 0 7 5 4 9 1

4. smarty

Second one: 5 1 0 4 3 5

5. smarty

@RomeoRaj

6. Outkast3r09

smarty do you understand the concept of multiplying matrices?

7. Outkast3r09

first you want to ake sure it'spossible by seeing that n=m if they do it's possible to multiply in this case you have 2 rows and 2 columns in the other one so it's possible

8. smarty

I know that the Dimensions have to be same, but i get stuck on which number should multiply which other number.

9. Outkast3r09

|dw:1340317970471:dw|

10. Outkast3r09

then you multiply the top by the second column

11. Outkast3r09

then you do the same with the bottom

12. Outkast3r09

make sense? you can check your answers on a graphing calculator also

13. smarty

So, top of first with first column of second, then bottom row with second column

14. Outkast3r09

not quite ... the first row of first multiplied by the first column of the second will gety ou one value

15. Outkast3r09

for instance i'll do the first one for you|dw:1340318247741:dw|

16. smarty

Oh, i get it now, so you do it twice...alright, makes sense, thanks~!

17. Outkast3r09

yep

18. Outkast3r09

the next one would be the top row with the second column of the second

19. Outkast3r09

if you have a graphing calculator there is a matrix button. 2nd-matrix.. and you can edit your matrix in and then multiply them together. you can probably find info on the net about how to do this as i don't have my graphing calculator with me and it's hard to explain

20. Outkast3r09
21. Outkast3r09

there is some information @smarty

22. Outkast3r09

however if you're in an actual classroom i do believe you should know how to do it by hand as your teacher is probably trying to make sure you understand the concept of doing by hand. when you get into higher classes when you're doing huge matrices, they just tell you to use calculators

23. smarty

Yea i got it now, thanks for the explanation!