Let's say that this right over here is f of x. So f of x is equal to one minus cosine theta over two sine squared theta. And let's see if we can rewrite it in some way, that at least the limit as theta approaches zero isn't going to, we're not gonna get the same zero over zero. Well, we can, we got some trig functions here, so maybe we can use some of our trig identities to simplify this. And the one that jumps out at me is that we have the sine squared of theta, and we know from the Pythagorean identity in trigonometries, comes straight out of the unit circle definition of sine and cosine, we know that sine squared theta plus cosine squared theta is equal to one, or we know that sine squared theta is one minus cosine squared theta. One minus cosine squared theta. So we could rewrite this.