This is a video from every step calculus.com demonstrating how my programs work on a ti eighty nine titanium calculator and other calculators in the t i system for physics and calculus problems ok integration by parts with regard to finding the integral of cosine and let’s get started ahh, you have to press second alpha to enter the i n d e x letters then press alpha to enter the nine and open and closed parenthesis this is for calulus two now and three uhm and then you have to press enter and you are into my menu ahh we scroll to whatever we want right now we want integration by parts and we want cosine click on that and we’re gonna do uhm you have to press alpha before you enter anything into the entry lines of my programs press alpha I’m going to do x squared plus five times cosine of three times x. I always show you what you’ve entered so you can change it if you want. I give you that option I say it’s ok and we’re into the calulations here’s what we’re integrating. I’m not going to teach you on this so much I did on another video but we’re not interested in learning this we’re interested in doing it you can copy it on your paper or homework do it quickly there is two integration by parts on this one course it’s this formula v times u minus the integral of v times du dx. I do all this for you no problem here’s the second integration by parts because you have x times sine of three x here you can’t integrate when you have times you need to change it some how in this case doing integration by parts again and we find dv and u and du and you write all this stuff down keep writing it exactly the way it is and here’s your answer x squared plus five ect. Pretty neat huh? everystepcalculus.com go to my site. Buy my programs and pass your calculus class.