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Term | Definition |
---|---|
0°/360° | 2/π & (1,0) |
30° | π /6 & (√3/2,1/2) |
45° | π /4 & (√2/2,√2/2) |
60° | π /3 & (1/2,√3/2 |
90° | π /2 & (0,1) |
120° | 2π /3 & (-1/2,√3/2) |
135° | 3π /4 & (-√2/2,√2/2) |
150° | 5π /6 & (-√3/2,1/2) |
180° | π & (-1,0) |
210° | 7π /6 & (-√3/2,-1/2) |
225° | 5π /4 & (-√2/2,-√2/2 |
240° | 4π /3 & (-1/2,√3/2) |
270° | 3π /2 & (0,-1) |
300° | 5π /3 & (1,2, -√3/2) |
315° | 7π /4 & (√2/2,-√2/2) |
330° | 11π /6 & (√3/2,-1/2) |
sine | y |
cosine | x |
tangent | y/x |
cosecant | 1/y |
secant | 1/x |
cotangent | x/y |
Q1 | all positive |
Q2 | y positive/sine positive |
Q3 | tangent positive |
Q4 | x positive/cosine positive |