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- smarty

Multiply the following Matrices.

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- smarty

Multiply the following Matrices.

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- smarty

|dw:1340306136689:dw|

- anonymous

plz give a clear image of the marices...

- smarty

First matrix
0 7 5
4 9 1

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- smarty

Second one:
5 1
0 4
3 5

- smarty

- anonymous

smarty do you understand the concept of multiplying matrices?

- anonymous

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

- smarty

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

- anonymous

|dw:1340317970471:dw|

- anonymous

then you multiply the top by the second column

- anonymous

then you do the same with the bottom

- anonymous

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

- smarty

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

- anonymous

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

- anonymous

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

- smarty

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

- anonymous

yep

- anonymous

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

- anonymous

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

- anonymous

http://mathbits.com/mathbits/tisection/precalculus/matrices.htm

- anonymous

there is some information @smarty

- anonymous

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

- smarty

Yea i got it now, thanks for the explanation!

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