And now we have some nice canceling, or potential canceling that can occur. So we could say that cancels with that. And we could say that that is going to be equal, and let me do this in a new color, this is going to be equal to, in the numerator we just have one, in the denominator we just are left with one minus square root of two sine theta. And if we want these expressions to truly be equal, we would have to have them to have the same, if you view them as function definitions, as having the same domain. So this one right over here, this one we already saw is not defined at theta is equal to negative pi over four. And so this one, in order for these to be equivalent, we have to say that this one is also not. And actually other places, but let's just say theta does not equal negative pi over four.