1. Math 120: Pre-calculus 2 Instructor: Mike Panitz (mpanitz@cascadia.ctc.edu)

2. Math 120: Pre-Calculus 2!2 Today Sum-to-Product/Product-To-Sum Formulas –Section (7.6 / 4e (9.6 / 3e)) Trig Equations: –Section (7.7 / 4e (9.7 / 3e)) Double & Half-Angle Formulas: Review of Proof –Section (7.5 / 4e (9.5 / 3e))

3. Math 120: Pre-Calculus 2!3 Next Lecture Trig Equations: –Section (7.7-7.8 / 4e (9.7-9.8 / 3e)) Trig Applications –Section (8.1 / 4e (10.1 / 3e))

4. Math 120: Pre-Calculus 2!4 Next next Lecture – Exam #2 Cumulative –‘Problem’ topics might return “Prove that SinX = Y” won’t be on this exam –Topic that wasn’t on Exam#1: Inverse Trig functions (sin, cos, tan) Can still have a 3x5 card –I’ve got some up front, if you don’t Same sort of format as Exam #1

5. Math 120: Pre-Calculus 2!5 Homework All homeworks will be collected on the day of the next exam (Feb 23 rd ) –Collected at the beginning of class –Hand them in before you start the exam