I have a problem with getting the exact value of this integral : $$\int_{x}^{+\infty}\frac{e^{-t}}{t}dt$$
Any help would be much appreciated.
I have a problem with getting the exact value of this integral : $$\int_{x}^{+\infty}\frac{e^{-t}}{t}dt$$
Any help would be much appreciated.