Question

who know how to change matrix

Answer 1

to

Answer 2

just like row echelon form

Answer 3

to make the lower 2, equal to 1, u can do R2-R1

Answer 4

R2=R2-R1

Answer 5

upper?

Answer 6

upper what ?
what u get after u do R2=R2-R1 ?
can u do this operation ?

Answer 7

u sure about the question ?
because i don' see a way to change it to -1 1; 1 1 from this....

Answer 8

i want to change the matrix to \[T=\left\{ t-1,t+1 \right\}\]

Answer 9

all u can do to get -1 is R1=R1-2R2 , but that will give u 0

Answer 10

the determinant of the two matrices are different so there's no way for the two matrices to be row and/or column equivalent

Answer 11

the first matrix \[\large \left[\begin{matrix}1 & 2 \\ 2 & 3\end{matrix}\right]\] is row/column equivalent to \[\large \left[\begin{matrix}-1 & 1 \\ 1 & 0\end{matrix}\right]\]