原式=sin50°（cos10+根号3sin10°）/cos10°
=2sin50°(cos10°cos60°+sin10°sin60°)/cos10°
=2sin50°cos50°/cos10°
=sin100°/cos10°=1
三角函数化简求值sin50°(1+(根号3)ten10°)
原式=sin50°（cos10+根号3sin10°）/cos10°
=2sin50°(cos10°cos60°+sin10°sin60°)/cos10°
=2sin50°cos50°/cos10°
=sin100°/cos10°=1