I am trying to do random problems in my book and I do not know what to do for this one.
I am suppose to find the limit as x approaches infinity of $\tanh x$
I really do not know what to do I know the problem is $ \frac{(e^x - e^{-x})/2}{(e^x + e^{-x})/2}$ which I think can reduce to $ \frac{e^x - e^{-x}}{e^x + e^{-x}}$.