Wednesday, October 21, 2009

Sum & Difference Identities

Today we learned 6 more identities called sum and difference identities. We used the example of 7pi/12 and how it can also be said as pi/3 and pi/4, so those two new values can be put into the corresponding sum/difference identity.

Homework: Exercise 16, questions 1-15 (except 3 & 5)

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