After looking at this piece of (*) for 3 hours over 2 days, i finally solved it, and i can reproduce the calculations - And actually somewhat understand the logic.
Deveno, you really helped a lot, and your post was very informative. Thanks a LOT for the effort, and Merry Christmas to the both...
Homework Statement
Determine [T]β for linear operator T and basis β
T:((x1; x2]) = [2x1 + x2; x1 - x2]
β = {[2; 1], [1; 0]}
Homework Equations
Now that would be MY question :rolleyes:
The Attempt at a Solution
Well the answer is [1, 1; 3, 0], but i have no idea what I'm even...