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1st row, second column

\(\large a_{mn}\)
will give you m'th row and n'th column

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i dont understand what i am supposed to do!

can u indentify first row ?

*identify

i dont even know what this is. i didnt even learn it so i literally have NO idea!

|dw:1352781758000:dw|

this representation of numbers is called Matrix representation.

in your question, [ 8 -2 -2 ]
is first row, got this ?

yes

so can u tell me 2nd row ?

2 6 -3

absolutely correct :)
now 1st column ?

8 2 9

|dw:1352782627935:dw|

2 2?

2 2 ?
there is only one element which is in first row and 2nd column

i mean like 2nd row 2nd column

a12 means 1st row and 2nd column

ohh

so which element is it ?

i dont know i dont understand this!

|dw:1352783049025:dw|

my options are:
–2
–3
5
2

see last drawing, did u get that ?

yes

thats what i was trying to tell you, all this time....

ohmygod! really?

now did u understand how to find elements ?

i think but can you help with more? i have 23% in algebra2

yes. but ask new question in new post ...

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