Question

formating homework ....

Answer 1

sounds hard

Answer 2

never even hard of that type

Answer 3

nah, just trying to matrix up latex

Answer 4

amistre posts a question
instantly 29 people viewing it
hehe

Answer 5

lol

Answer 6

\[\left|
\begin{array}c
-8&5&3\\
4&-8&4\\
8&1&-9\\
\end{array}\right|\]
gotta rref it

Answer 7

it says to use derive; but i dont see why i have to pick one rrefer over another

Answer 8

lol ... when I swap columns I get a different answer

http://www.wolframalpha.com/input/?i=rref%7B%7B-8%2C8%2C4%7D%2C%7B5%2C1%2C-8%7D%2C%7B3%2C-9%2C4%7D%7D

http://www.wolframalpha.com/input/?i=rref%7B%7B-8%2C4%2C8%7D%2C%7B5%2C-8%2C1%7D%2C%7B3%2C4%2C-9%7D%7D