已知sinA=0.4561,则锐角A≈_____(精确到0.01°); 已知cosA=0.3638,则锐角A≈_____(精确到0.01°).
问题描述:
已知sinA=0.4561,则锐角A≈_____(精确到0.01°); 已知cosA=0.3638,则锐角A≈_____(精确到0.01°).
答
27.1° 68.7°
已知sinA=0.4561,则锐角A≈_____(精确到0.01°); 已知cosA=0.3638,则锐角A≈_____(精确到0.01°).
27.1° 68.7°