Now let's think about the limit as we approach negative infinity. As we approach negative infinity, this is going to approach zero. One divided by things that are becoming more and more and more and more and more negative, their magnitude is getting larger, so this is going to approach zero. This over here is also going to be, this thing is also going to be approaching zero. We're dividing by larger and larger and larger values. And so what this is going to result in is the square root of four, the principal root of four over two, which is the same thing as two over two, which is equal to one. And we are done.