The Trig Song
well, i think this is right...
sing to the tune of the 12 days of Christmas. the last 6 verses of it, anyway
6 compound angle
5 double angle
4 minor trig
3 pythag
2 half angle
...and tan is sin over cos
must be sung with great enthusiasm and a lot of arm waving for the full effect.
i would like to say that this song is the reason i know all my major trig identities. unfortunately, i've forgotten them all again since the last set of exams. ah well, such is life.