And we see that right at x equals two, if we try to evaluate f of two, we get two over one minus cosine of two minus two, which is the same thing as cosine of zero, and cosine of zero is just one, and so one minus one is zero, and so the function is not defined at x equals two, and that's why it might be interesting to find the limit as x approaches two, and especially the one-sided limits. And if the one-sided limits, well, I'll just leave it at that. So let's try to approach this. And there's actually a couple of ways you could do it. There's one way you could do this without a calculator, by just inspecting what's going on here and thinking about the properties of the cosine function. And if that inspires you, pause the video and work it out, and I will do that at the end of this video. The other way, if you have a calculator, is to do it with a little bit of a table, like we've done in other example problems.