sin10°cos50°+sin50°cos10°
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sin10°cos50°+sin50°cos10°
sin10°cos50°+sin50°cos10°
sin10°cos50°+sin50°cos10°
sin10°cos50°+sin50°cos10°=sin(10°+50°)=sin60°=根号3/2
sin10°cos50°+sin50°cos10° =sin(10°+50°) =sin60° =根号3/2
sin10°cos50°+sin50°cos10°
= sin(10°+ 50°)
= sin60°
= 1/2
=sin60°=√3/2
(sin10°+cos50°)/(cos10°-sin50°)?
sin10°cos50°+sin50°cos10°
sin10°cos50°+sin50°cos10°
(2sin10°+sin50°)÷cos50°
(cos10°-cos50°)÷(sin10°-sin50°)
sin10°cos50°+sin50°cos10°的三角函数值
和角公式 sin50°cos10°+cos50°sin10°
√(cos50°-sin50°)²+|cos50°-1|
数学(cos50°*tan50°)-sin50°
sin50°,cos50°分别等于多少
sin50°-cos50°等于多少
SIN50°+COS50°还能再化简了吗
sin50°-cos50°等于什么
2sin50°cos50°怎么等于cos50°cos40°+sin50°sin40°
sin10加sin50除以cos10加cos50
sin50°*cos40°+cos50°*sin40°如题
计算sin50°cos40°+cos50°sin40°
求值sin70°cos50°+sin20°sin50°=?