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Unformatted text preview: 2.2 Cofunctions, Odd and Even Functions
Wednesday, September 14, 2011
9:09 AM Agenda:
1. Classwork
2. Lesson: 2.2 Cofunctions, Odd and Even Functions
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Classwork
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Lesson: 2.2 Cofunctions, Odd and Even Trig Functions
Goal: Use properties of trig functions to evaluate trig functions.
DOD
Two angles are complementary if the sum of their measures are What angle is complementary to
What angle is complementary to
What angle is complementary to . ?
? Do some evaluations for me. If , then If , then If , then You have just shown the property that cofunctions of complementary angles are equal!
Cofunctions
Sine and Cosine
Tangent and Cotangent
Secant and Cosecant Ch_2 Page 1 Sine and Cosine Tangent and Cotangent Secant and Cosecant Odd and Even Functions
Remember….
Odd Function
Even Function Let's do some evaluations… Odd Trig Functions Even Trig Functions ______________________________
Examples
Use the fact that trig functions are odd or even, periodic, and the property of
cofunctions to evaluate.
Ch_2 Page 2 If If a) a) If
What do we know?
a) b) b) b) c) c) c) Ch_2 Page 3 ...
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This note was uploaded on 11/19/2011 for the course MATH 180 taught by Professor Byrns during the Spring '11 term at Montgomery College.
 Spring '11
 byrns
 Math

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