But this does not look like that, and the key is to appreciate that one over x is the same thing as x to the negative one. So this is going to be the derivative with respect to x of x to the negative one. And now this looks a lot more like what you might be used to where this is going to be equal to, you take our exponent, bring it out front, so that's negative one, times x to the negative one minus one, negative one minus one, and so this is going to be equal to negative x to the negative two, and we're done. Let's do another example. Let's say that we're told that f of x is equal to the cube root of x, and we wanna figure out what f prime of x is equal to. Pause the video and see if you can figure it out again. Well, once again, you might say, hey, how do I take the derivative of something like this, especially if my goal, or if I'm thinking that maybe the power rule might be useful?