020816 Day5 Six Trigonometric Functions.notebook
February 08, 2016
Monday, February 8, 2016
HONORS PreCalculus, Period 4
Lesson Overview:
• Warm Up
• Go over homework
• Unit 1: The Unit Circle, Right Triangle Trig, & Graphs of Trig Functions
> The Six Trigonometric Functions
– Reciprocal Identities
– Quotient Identities
– Cofunction Identities
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020816 Day5 Six Trigonometric Functions.notebook
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Questions on the homework?
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020816 Day5 Six Trigonometric Functions.notebook
angles
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inputs
ratios (of side lengths)
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Reciprocal Identities
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Quotient Identities
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Calculate the six trigonometric functions of Ɵ
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7
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020816 Day5 Six Trigonometric Functions.notebook
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Special Right Triangles: 45°-45°-90°
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45°
sin(45°) =
csc(45°) =
cos(45°) =
sec(45°) =
tan(45°) =
cot(45°) =
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020816 Day5 Six Trigonometric Functions.notebook
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Special Right Triangles: 30°-60°-90°
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30°
sin(30°) =
csc(30°) =
cos(30°) =
sec(30°) =
tan(30°) =
cot(30°) =
sin(60°) =
csc(60°) =
cos(60°) =
sec(60°) =
tan(60°) =
cot(60°) =
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020816 Day5 Six Trigonometric Functions.notebook
February 08, 2016
Cofunction Identities
equal
trig function
cofunction
complement
sine and COsine
tangent and COtangent
secant and COsecant
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020816 Day5 Six Trigonometric Functions.notebook
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Cofunction Identities
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020816 Day5 Six Trigonometric Functions.notebook
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Homework: Finding Values of Six Trigonometric Functions
Wkst
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