Math 120:
Pre-calculus 2
Instructor: Mike Panitz
(mpanitz@cascadia.ctc.edu)
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))
Math 120: Pre-Calculus 2!
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Next Lecture
• Trig Equations:
– Section (7.7-7.8 / 4e (9.7-9.8 / 3e))
• Trig Applications
– Section (8.1 / 4e (10.1 / 3e))
Math 120: Pre-Calculus 2!
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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
Math 120: Pre-Calculus 2!
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Homework
• All homeworks will be collected on the day
of the next exam (Feb 23rd)
– Collected at the beginning of class
– Hand them in before you start the exam
Math 120: Pre-Calculus 2!
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