Hi,
I am trying to integrate $\displaystyle \int \frac{1}{e^x} dx$
I have tried using substitution of $\displaystyle u = x$ or $\displaystyle u=e^x$ both does not help.
On a side note, is it correct that $\displaystyle \frac{1}{e^x} = e^{-x}$?
Hi,
I am trying to integrate $\displaystyle \int \frac{1}{e^x} dx$
I have tried using substitution of $\displaystyle u = x$ or $\displaystyle u=e^x$ both does not help.
On a side note, is it correct that $\displaystyle \frac{1}{e^x} = e^{-x}$?