As we have witnessed first- and second-hand, log properties can tremendously simplify the process of taking the derivative. Too bad you can only use them on logarithmic functions. Or can you? This next example does just that in a process know as logarithmic differentiation. Duration: 5:51

Of course, the following problems would be next to impossible without the aid of logarithmic differentiation. Adjacent to impossible. Nearly inside impossible. That's how close to impossible they would be. Duration: 6:53