Homework Statement
I don't understand why the following intergral is improper
http://img413.imageshack.us/img413/1667/38410700.jpg
I have a graph for the function.
http://img413.imageshack.us/img413/2424/photoxxs.jpg
According to this graph, the function should converge in [-∞,0)
However...
Homework Statement
http://img20.imageshack.us/img20/112/41590752.jpg
Homework Equations
The Attempt at a Solution
I have no idea how to convert the left equation into the right one.
Could someone show me how to do that?
I don't understand why the right equation should be...