How we can find an admissible change of variables that goes from (0,2) to $(-\infty,0)$?

42 Views Asked by At

I find a text on the web about curves and it ask for an admissible change of variables that goes from (0,2) to (-$\infty$, 0), I think about log(-x) or some function like that, but I really don't get it, any hints on this one?

1

There are 1 best solutions below

0
On

$$\tan\left[\frac{\pi}{2}\left(\frac{x}{2} - 1\right)\right].$$