tan0.5°=0.0087
tan1°=0.0175
tan2°=0.0349
tan3°=0.0524
tan4°=0.0699
tan5°=0.0875
tan10°=0.1763
tan20°=0.3640
tan50°=1.1918
用计算器求正切值用计算器求下列正切值对应的锐角θ,并填入下表
tan0.5°=0.0087
tan1°=0.0175
tan2°=0.0349
tan3°=0.0524
tan4°=0.0699
tan5°=0.0875
tan10°=0.1763
tan20°=0.3640
tan50°=1.1918