Can we somehow figure out what is the derivative, what is the derivative with respect to x when we have a to the x, where a could be any number? Is there some way to figure this out? And maybe using our knowledge that the derivative of e to the x is e to the x. Well, can we somehow use a little bit of algebra and exponent properties to rewrite this so it does look like something with e as a base? Well, you could view a, you could view a as being equal to e, let me write it this way, well, I'll write it, a as being equal to e to the natural log of a. Now, I want you to, if this isn't obvious to you, I really want you to think about it. What is the natural log of a?