2007-09-06

Today's nonsense:
- Phoebe the desserter
- Cupcakes from Spiller
- Blatent dress code violations and the volleyball players
- Shagrin and Dakota ("much to your displeasure")
- Bill's subway and Spiller's four-spinach-leaf subway disaster

Tomorrow - we talk about trig substitution.

We try to get these problems to where there's only one sine or one cosine and then more of the other type of trigonometric functions. We can change two tangents into two secant squareds (sec^2 - 1). So in this first example of the day (see the notes), we want everything in terms of secant and with a sec-tan left over, or all in terms of tangent and that one secant. The "u" is going to have to be secant.