sin10°cos50°+sin50°cos10°
问题描述：
sin10°cos50°+sin50°cos10°
答
sin10°cos50°+sin50°cos10°=sin(10°+50°)=sin60°=根号3/2
sin10°cos50°+sin50°cos10°
sin10°cos50°+sin50°cos10°=sin(10°+50°)=sin60°=根号3/2