本表列出了三角函数正弦 (sin)、余弦 (cos)、正切 (tan) 和余切 (cot) 在从 0 度到 360 度范围内的值。
角度(度) | 正弦(sin) | 余弦(cos) | 正切(tan) | 余切(cot) |
---|---|---|---|---|
0 | 0 | 1 | 0 | 无穷大 |
15 | 0.2588 | 0.9659 | 0.2679 | 3.7321 |
30 | 0.5 | 0.866 | 0.5774 | 1.7321 |
45 | 0.7071 | 0.7071 | 1 | 1 |
60 | 0.866 | 0.5 | 1.7321 | 0.5774 |
75 | 0.9659 | 0.2588 | 3.7321 | 0.2679 |
90 | 1 | 0 | 无穷大 | 0 |
105 | 0.9659 | -0.2588 | -3.7321 | -0.2679 |
120 | 0.866 | -0.5 | -1.7321 | -0.5774 |
135 | 0.7071 | -0.7071 | -1 | -1 |
150 | 0.5 | -0.866 | -0.5774 | -1.7321 |
165 | 0.2588 | -0.9659 | -0.2679 | -3.7321 |
180 | 0 | -1 | 0 | 无穷大 |
195 | -0.2588 | -0.9659 | 0.2679 | 3.7321 |
210 | -0.5 | -0.866 | 0.5774 | 1.7321 |
225 | -0.7071 | -0.7071 | 1 | 1 |
240 | -0.866 | -0.5 | 1.7321 | 0.5774 |
255 | -0.9659 | -0.2588 | 3.7321 | 0.2679 |
270 | -1 | 0 | 无穷大 | 0 |
285 | -0.9659 | 0.2588 | -3.7321 | -0.2679 |
300 | -0.866 | 0.5 | -1.7321 | -0.5774 |
315 | -0.7071 | 0.7071 | -1 | -1 |
330 | -0.5 | 0.866 | -0.5774 | -1.7321 |
345 | -0.2588 | 0.9659 | -0.2679 | -3.7321 |
360 | 0 | 1 | 0 | 无穷大 |
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