Tangent & Cotangent Graphs w/ Transformations

I do two examples of Tangent and Cotangent that include multiple transformations with a t-table. This video has two errors noted below which have annotation corrections in the video which you will see if you have Flash. At minute 7:27 I say that the cot(0) is -1/0, that should be 1/0. The very last point I mention at around 10:42 should have a y coordinate of -1 not 0. Sorry for the small errors:) Check out http://www.ProfRobBob.com/, there you will find my lessons organized by class/subject and then by topics within each class. Find free review test, useful notes and more at http://www.mathplane.com/ If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage    / profrobbob