求值:cos40°+sin50°(1+3tan10°)sin70°1+sin50°
求值:cos40°+sin50°(1+3tan10°)sin70°1+sin50°
[cos40°+sin50°(1+√3tan10°)]/[sin70°√(1+cos40°)]=
(cos40°+sin50°(1+√3tan10°))/sin70°√(1+cos40°)
[cos40°+sin50°(1+√3tan10°)]/[sin70°√(1+cos40°)]=?
求值{cos40°+sin50°(1+根号3tan10°)}/1+sin50°
『cos40°+sin50°(1+√3tan10°)』/sin70°√1+cos40°』
sin50°(1+根号3tan10°)求值、
求值:2sin50°+cos10°*(1+根号3tan10°)/cs35°cos40°+cos50°cos55°
化简求值2sin50°+cos10°(1+3tan10°)cos35°cos40°+cos50°cos55°
sin50°(1+根号3tan10°)
化简sin50°(1+3tan10°)
化简:[sin50°+cos40°(1+根号3tan10°)]/sin²70°