Math 25 Trigonometry October 4, 1999

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Math 25 --- Trigonometry October 4, 1999

• Section 3.1 questions
• Section 3.2
• Break
• Section 3.2
• Assignment 13

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AnnouncementsOctober 4, 1999

• Math and Science Colloquium
• Bob McPherson
• Shake, Rattle, and Roll
• Tuesday, October 5 AJ111
• tea 400
• talk 430-530

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AnnouncementsSeptember 27, 1999

• Section 2.6 due

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Hints to Proving Identities
1) Start with the most complicated side first. 2)
Change all functions to sines and cosines. 3)
Rewrite sums and differences of fractions as
single fractions. 4) Remember what you are trying
to show. 5) Try multiplying fractions by the
conjugate of the denominator.
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Hints to Proving Identities
6) TRY SOMETHING !
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Angle Sum Formulas
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Assignment 13

• Homework 3.2 pbs 5-65 (every 5th)