1/sin10°-根号3/sin80°=
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1/sin10°-根号3/sin80°=1/sin10°-根号3/sin80°=1/sin10°-根号3/sin80°=1/sin10°-根号3/sin80°=(sin80°-根号3sin10°)/s
1/sin10°-根号3/sin80°=
1/sin10°-根号3/sin80°=
1/sin10°-根号3/sin80°=
1/sin10°-根号3/sin80°
= (sin 80 °- 根号3sin 10°)/sin10°sin80°
=2(1/2cos10°-根号3/2sin10°)/1/2sin10°cos10°
=2(sin30°cos10-cos30°-sin10°)/1/2sin20°
=2sin20°/1/2sin20°
=4
1/sin10°-根号3/sin80°=
1/sin10°-根号3/sin80°的值为
1/sin10°-根号3/sin80°的值为
求值:1/sin10°-根号3/sin80°
1/sin10°-√3/sin80°
1/sin10度 - 3的根号/sin80度=?
求值:1/sin10°-√3/sin80°
1/sin10°— √3/sin80°
化简【2sin50°+sin10°(1+根号3tan10°)】乘根号下2(sin80°的平方)
请问这个题怎么解?sin50°+sin10°(1+根号3*tan10°)根号下2*sin80°平方
1/sin10度—根号3/sin80度.怎么算
求(1/sin10度)-(根号3/sin80度)的值
[2sin50+sin10(1+根号3tan10)]sin80
[2sin50+sin10(1+根号3*tan10)]*根号(2sin80*sin80)
1/sin10°-√3/sin80°=______________我用计算机算出来是4
三角函数恒等变换1/sin10° -根号3/sin80的值为如果比较麻烦也可以直接写思路
不查表,计算1/sin10°-(根号3)/sin80°=.那啥 - - 能把解题技巧给我说一下的话就更好了额呵呵呵呵.
cos10°+根号下3sin10°为什么等于2sin80°