Decisions, decisions!!
I hope you all found our Worksheet 6.3A challenging in class today. The hardest part is certainly determining which method to use: shells, washers or disks. Make sure you are drawing a sample rectangle each time and then sketching the revolution of that rectangle around the appropriate axis. The shape that you get tells you what method to use and sets up the dimensions required for each formula.
I told you I would put our answers online so here you go…these are for only part C, and I even set up the first couple integrals for you so you could check them out:
The powerpoints from 6.2/6.3 are in my outbox if you want to review the notes from class and look at a few extra examples. There are also some nifty web resources to help you out if you need some extra visualization or examples. Happy exploring:
Java applet for visualizing the disk method
An applet for the Disk/Washer Methods
