Finding Natural Log Showing Work on TI89-Video

Hello, Tom from everystepcalculus.com and everystepphysics.com. We’re going to do a calculus problem with regard to natural log. And which we’re going to my menu here. Let’s do it. Index 8 to get to my menu. You can see the problem on your screen. And I’m already at log of X to save time here in the menu. But just scroll down from where it starts the A’s all the way down to L, here. Choose that. If you want to integrate a log of X. And we’re going to choose number two, Integration again. And we’re going to choose log a X, number one. And we’re going to enter the function. You have to press Alpha before you enter anything these entry lines here. Alpha second log, put the log in here. X squared plus two times X, close off the parentheses. I always show you’ve entered. You’ll notice that the calculator factored this. iIt always does that automatically which we need in this system of equations. So we’re gonna rewrite it and we’re going to put the one here because when you integrate one, you get X. So DV is one, V equals the integration of one and the answer is X. Which you need for the formula. Here’s the formula UV minus integral of V, etc.