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Trig
Name | Mastery | Learn | Test | Matching | Spaced |
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Sin
Opposite over hypotenuse. SOH
Cos
Adjacent over hypotenuse. CAH
Tan
Opposite over adjacent. TOA
30-60-90 Triangle
Hypotenuse: 2 Adjacent: √3 Opposite: 1
45-45-90 Triangle
Hypotenuse: √2 Adjacent: 1 Opposite: 1
CAST
C= Cos A= All positive S= Sin T= Tan
csc (Opposite of Sin)
Hypotenuse/opposite
sec (Opposite of Cos)
Hypotenuse/adjacent
cot (Opposite of tan)
Adjacent/opposite
Quad 1
90°
Quad 2
180°
Quad 3
270°
Quad 4
0°, 360°
90°
(0,1)
180°
(-1,0)
270°
(0,-1)
360°
(1,0)