Question

正弦余弦的25度 30度45度60度37.5度52.5度65度值分别是多少

Answer 1

sin25°=0.4226 cos25°=0.9063

sin30°=0.5000 cos30°=0.8660

sin45°=0.7071 cos45°=0.7071

sin60°=0.8660 cos60°=0.5000

sin37.5°=0.6088 cos37.5°=0.7934

sin52.5°=0.7934 cos52.5°=0.6088

sin65°=0.9063 cos65°=0.4226