I don't understand how to do this question! Doesn't it just mean to find the inverse of matrix T?
Find a formula for T^-1 if
T(x1,x2) = (8x1 - 4x2, 6x1 - 6x2)
T^-1(x1,x2) = (_x1 + _x2,_x1 + _x2) ?
What's the matrix of T...
Wouldn't it be like:
[6 -6] ?!
Thank you so much...I'm confused.