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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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