Here's the question you clicked on:
smarty
Multiply the following Matrices.
plz give a clear image of the marices...
First matrix 0 7 5 4 9 1
smarty do you understand the concept of multiplying matrices?
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
I know that the Dimensions have to be same, but i get stuck on which number should multiply which other number.
|dw:1340317970471:dw|
then you multiply the top by the second column
then you do the same with the bottom
make sense? you can check your answers on a graphing calculator also
So, top of first with first column of second, then bottom row with second column
not quite ... the first row of first multiplied by the first column of the second will gety ou one value
for instance i'll do the first one for you|dw:1340318247741:dw|
Oh, i get it now, so you do it twice...alright, makes sense, thanks~!
the next one would be the top row with the second column of the second
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
http://mathbits.com/mathbits/tisection/precalculus/matrices.htm
there is some information @smarty
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
Yea i got it now, thanks for the explanation!