And so I can rewrite all of this as being equal to the limit as x approaches zero. And let me rewrite this as, instead of sine squared of x, that's the same thing as sine of x times sine of x. Let me write it that way. Sine x times sine x. So I'll take the first sine of x. So I'll do, I'll take this one right over here and put it over this x. So sine of x over x times the second sine of x, let's say this one, over one plus cosine of x.