5.2 Verifying Trig Identities

# 5.2 Verifying Trig Identities - Remember that sine and...

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Agenda: 1. Whiteboard Warmup 2. Lesson: 5.2 Verifying Trig Identities ________________________________ Whiteboard Warmup Rewrite the expression so that it is not in fractional form. ±² ³ ´ µ ¶ ·¸ ´ ________________________________ Lesson: 5.2 Verifying Trig Identities Goal: Verify Trig Identities DOD A conditional equation is true only for certain values of the variable, while an identity is true for all values of the variable. Example Conditional Equation ¹º » µ ¼ µ½ Identity ¾º ¶ ¿ ¼ ¾ À º ¶ ¾ Á Guidelines for verifying trig identities 1. Work with one side of the equation only. Start with the more complicated side! factor an expression? add fractions? square a binomial? create a monomial denominator? 2. Can you: 3. Can you use a fundamental identity somewhere? Note which functions are in Notebook Check/Quiz on Block Day 5.2 Verifying Trig Identities Tuesday, September 20, 2011 6:36 AM Ch_5 Page 1

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