Unit Circle Intro.notebook
October 30, 2015
Find your notes about special right triangles
and solve the triangles (No Decimals, no calculators)
45o
14
10
30o
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Unit Circle Intro.notebook
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Unit Circle Intro.notebook
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Equation of a circle?
x2 + y2 = r2
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Unit Circle Intro.notebook
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Unit Circle Intro.notebook
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Label all the angles on your sheet in radians, then write
statements for each sin and cos value
ex
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Unit Circle Intro.notebook
October 30, 2015
Another helpful thing about the unit circle and trig
functions: CO-FUNCTIONS
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Unit Circle Intro.notebook
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Unit Circle Intro.notebook
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Unit Circle Intro.notebook
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Practice:
1) tan (45)
2) cot ( pi/6)
3) csc (pi/2)
4) sec (60)
5) sec (3pi/4)
6) sin (7pi/6)
7) cos (-210)
8) tan (-3pi/4)
9) sin (480)
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Unit Circle Intro.notebook
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Unit Circle Intro.notebook
An
e
gl
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es
t
a
Co
n
di
r
o
Sine
Cosine
Tangent
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