That's going to be sine of 0 again, which is 0. So our numerator is going to be equal to 0. Sine of 0, that's 0, and then we have another sine of 0 there, so all 0s. And our denominator, we're going to have a 0 minus sine of 0. Well, that's also going to be 0, but we have that indeterminate form, we have that undefined 0 over 0 that we talked about in the last video. So maybe we can use L'Hopital's Rule here. In order to use L'Hopital's Rule, then the limit as x approaches 0 of the derivative of this function over the derivative of this function needs to exist.