This is a pre calculus help video on derivatives calculus, actually a derivatives calculus program app for the ti 89 titanium calculator. To get to my main menu. You press 2nd alpha to enter the letters I n d e x and then press alpha again to enter the eight and the open, and closed parenthesis. Press ENTER and you’re into my menu. You scroll to where your choice is, right now you want to know how to do derivatives calculus. So we’re going to scroll to e to the x derivatives calculus in my menu. Press ENTER and we’re going to enter our function. You have to Press alpha before entering any variables in my programs we’re going to enter this example up here six times x squared. I show you what you’ve entered you can change it if you want. I say it’s ok. Press enter and you write everything on your paper to get the step by step calculations of derivatives calculus. I show you the formula, you have u here, d u equals the derivative twelve x format of putting it in, is like this, you substitute six x squared for u and the answer is twelve x time e to the six x squared now this d u, you multiply it times anything in front of the e to the x in case you enter it that way or have that problem. Pretty neat huh? Everystepcalculus.com. Go to my site, enjoy my programs, and pass calculus.