section 4.4 (part ii) trigonometric functions of any...
TRANSCRIPT
![Page 1: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/1.jpg)
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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
![Page 2: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/2.jpg)
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![Page 3: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/3.jpg)
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Example
![Page 4: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/4.jpg)
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The Signs of the Trigonometric Functions
![Page 5: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/5.jpg)
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Example
Example
![Page 6: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/6.jpg)
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Reference Angles
![Page 7: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/7.jpg)
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Example
Example
![Page 8: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/8.jpg)
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Evaluating Trigonometric Functions Using Reference
Angles
![Page 9: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/9.jpg)
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45
45 30
60
Here are the answers to the previous
![Page 10: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/10.jpg)
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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
![Page 11: Section 4.4 (Part II) Trigonometric Functions of Any Angleteacherwee.weebly.com/uploads/8/3/8/0/8380923/121212_4.4...121212 4.4 Trig Functions of any angle.notebook 1 December 12,](https://reader033.vdocuments.us/reader033/viewer/2022060720/607ff64ded15297d1310bbf7/html5/thumbnails/11.jpg)
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(a) (b)(c)(d)
(a)
(b)
(c)
(d)