第1个回答 2023-06-23
以下是0~180度的正余弦值表:
sin 0° = 0
sin 15° = 0.2588
sin 30° = 0.5
sin 45° = 0.7071
sin 60° = 0.8660
sin 75° = 0.9887
sin 90° = 1
sin 105° = 0.9887
sin 120° = 0.8660
sin 135° = 0.7071
sin 150° = 0.5
sin 165° = 0.2588
sin 180° = 0
cos 0° = 1
cos 15° = 0.9659
cos 30° = 0.8660
cos 45° = 0.7071
cos 60° = 0.5
cos 75° = 0.2588
cos 90° = 0
cos 105° = -0.2588
cos 120° = -0.5
cos 135° = -0.7071
cos 150° = -0.8660
cos 165° = -0.9659
cos 180° = -1
tan 0° = 0
tan 15° = 0.2679
tan 30° = 0.5774
tan 45° = 1
tan 60° = 1.7321
tan 75° = 3.3387
tan 90° = 无穷大
tan 105° = 3.3387
tan 120° = 1.7321
tan 135° = 0.5774
tan 150° = 0.2679
tan 165° = 0
tan 180° = 无穷小