正弦值角度对照表公式如下:
0° (0弧度)
sin0° = 0
30° (π/6弧度)
sin30° = 1/2
cos30° = √3/2
tan30° = √3/3
45° (π/4弧度)
sin45° = √2/2
cos45° = √2/2
tan45° = 1
60° (π/3弧度)
sin60° = √3/2
cos60° = 1/2
tan60° = √3
90° (π/2弧度)
sin90° = 1
cos90° = 0
tan90° = 无定义 (正切值在此角度下趋于无穷大)
120° (2π/3弧度)
sin120° = √3/2
cos120° = 1/2
tan120° = √3
135° (3π/4弧度)
sin135° = √2/2
cos135° = √2/2
tan135° = 1
150° (5π/6弧度)
sin150° = 1/2
cos150° = √3/2
tan150° = √3/3
180° (π弧度)
sin180° = 0
cos180° = 1
tan180° = 0
210° (7π/6弧度)
sin210° = 1/2
cos210° = √3/2
tan210° = √3/3
225° (5π/4弧度)
sin225° = √2/2
这些公式可以帮助你快速查找和计算不同角度的正弦值。对于其他角度,可以使用正弦和角公式和差角公式进行计算:
sin(α+β) = sinαcosβ + cosαsinβ
sin(α-β) = sinαcosβ - cosαsinβ
希望这些信息对你有所帮助。