So I can rewrite this as being equal to the limit as x approaches zero of sine of x over x times the limit as x approaches zero of sine of x over one plus cosine of x. Now, we said going into this video that we're going to assume that we know what this is. We've proven it in other videos. What is the limit as x approaches zero of sine of x over x? Well, that is equal to one. So this whole limit is just going to be dependent on whatever this is equal to. Well, this is pretty straightforward here.