But it will hopefully maybe by the end of this video or the next one. Now, what I want to do is a little bit of a thought experiment. If I were to ask you, what is the derivative with respect to x, if I were to supply the derivative operator to x squared with respect to x, what do I get? Well, this gives me 2x. We've seen that many, many, many, many times. Now, what if I were to take the derivative with respect to a of a squared? Well, it's the exact same thing.