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TRIG Exact Values - Unit Circle
Contributed by: Heseltine
cos(120°)
?
=-½
=-√3/2
cos(π/4)
?
=√3/2
=1/√2
sin(45°)
?
=1/√2
sin(/3)
?
=√3/2
=1/√2
sin(/4)
?
sin(30°)
?
=1/√2
=-1/√2
=-½
cos(215°)
?
=-½
=-1/√2
cos(π/6)
?
=3/√2
=√3/2
sin(240°)
?
sin(/6)
?
=1/√3
=-√3/2
= ½
=-2/√3
=-√3/√2
=-√3/2
cos(150°)
?
cos(/3)
?
=-¼
=-½
sin(330°)
?
sin(/4)
?
=1/√2
=-1/√2
=-1/√2
=-½
=-1/√2
=1/√2
cos(315°)
?
cos(11π/6)
?
=√3/2
=3/√2
sin(/3)
?
sin(210°)
?
=√3/2
=-√3/2
=-½
cos(/6)
?
=-√3/2
=√3/2
cos(300°)
?
=-½
sin(/2)
?
sin(90°)
?
=-1
 =0
=1
=1
cos(270°)
?
cos(π/2)
?
=-1
 =0
=1
=0
sin(π)
?
=0
=-1
sin(360°)
?
=0
=1
cos(180°)
?
=0
=-1
cos(2π)
?
=0
=1
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