All right, this is negative pi over two. Cosine of negative pi over two, if you thought in degrees, that's gonna be negative 90 degrees. Well, cosine of that is just going to be zero. So what we end up with is equal to zero over zero. And as we've talked about before, if we had something non-zero divided by zero, we'd say, okay, that's undefined. We might as well give up. But when we have this indeterminate form, it does not mean that the limit does not exist.