And so that's going to be the input into f. And so if we are now approaching two from above, here's the input into f, it looks like our function is approaching zero. And then we can go the other way. If we are approaching zero from the right, right over here, it looks like the value of our function is approaching two from below. Now, if we approach two from below, it looks like the value of f is approaching zero. So in both of these scenarios, our value of our function f is approaching zero. So I wasn't able to use this theorem, but I am able to figure out that this is going to be equal to zero. Now let me give you another example.