And then I click enter. And there you have it. It's approximately negative 3.812. So approximately negative 3.812. And we're done. And one thing that you might appreciate from this entire question, and even the question one, is they really want to make sure that you understand the underlying conceptual ideas behind derivatives and integrals. And if you understand the conceptual ideas of how do you use them to solve problems, and you have your calculator at disposal, that these are not too hairy, that these can be done fairly quickly.