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121212 4.4 Trig Functions of any angle.notebook
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December 12, 2012
Section 4.4 (Part II)Trigonometric Functions
of Any Angle
Homework (Due Thursday, December 13, 2012):
page 499 #921 odds, 3585 odds
... 24 problems... all pretty straightforward...
Trigonometric Functions of
Any Angle
121212 4.4 Trig Functions of any angle.notebook
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121212 4.4 Trig Functions of any angle.notebook
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Example
121212 4.4 Trig Functions of any angle.notebook
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The Signs of the Trigonometric Functions
121212 4.4 Trig Functions of any angle.notebook
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Example
Example
121212 4.4 Trig Functions of any angle.notebook
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Reference Angles
121212 4.4 Trig Functions of any angle.notebook
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Example
Example
121212 4.4 Trig Functions of any angle.notebook
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Evaluating Trigonometric Functions Using Reference
Angles
121212 4.4 Trig Functions of any angle.notebook
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1
1
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45
45 30
60
Here are the answers to the previous
121212 4.4 Trig Functions of any angle.notebook
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December 12, 2012
Example
Evaluating trig functions at reference angles only gives you the number value...
To find the sign of the answer... you have to think...
Example
121212 4.4 Trig Functions of any angle.notebook
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(a) (b)(c)(d)
(a)
(b)
(c)
(d)
