Hi, I was just wondering how to solve x for e^(-x) - x +1 = 0. ty
Exponential Question Watch
- Thread Starter
- 16-07-2014 07:53
- Study Helper
- 16-07-2014 09:16
You won't get a solution with elementary functions.
- 16-07-2014 20:46
If you want to find a good approximation for the solution in a pretty simple way you could write only the first 2 or 3 terms of the expansion of e^(-x) and then use the general formula for quadratics/cubics
to solve it for x. This will give you something pretty close (why?).
You could make it even more accurate by finding the Taylor series of exp around x=1 and use that
Posted from TSR MobileLast edited by LightBlueSoldier; 16-07-2014 at 20:51.