I can't get my head round this one:

int (1/x^2)*e^(1/x^2)

I know I need to use substitution but if I use u=1/x the derivative doesn't seem to help and the same if I use u=1/x^2

Any help appreciated

Printable View

- August 7th 2007, 02:40 AMbellycan[SOLVED] Integration difficulty
I can't get my head round this one:

int (1/x^2)*e^(1/x^2)

I know I need to use substitution but if I use u=1/x the derivative doesn't seem to help and the same if I use u=1/x^2

Any help appreciated - August 7th 2007, 07:06 AMThePerfectHacker
- August 7th 2007, 08:33 AMqpmathelpis it a definite integral