1sin10°−3sin80°
1/sin10°-根号3/sin80°
1/sin10°-√3/sin80°
1/sin10°— √3/sin80°
求值:1/sin10°-根号3/sin80°
不查表,计算1/sin10°-(根号3)/sin80°=
1/sin10°-根号3/sin80°的值为
求值:1/sin10°-√3/sin80°
1/sin10°-根号3/sin80°=
求值[2sin50°+sin10°(1+√3tan10°)]*√2(sin80°)*(sin80°)
[2sin50°+sin10°(1+√3tan10°)]*√2(sin80°)*(sin80度)
求[2sin50°+sin10°(1+√3tan10°0]sin80°的值
求值:[2sin50°+sin10°(1+√3tan10°)]×√2sin80°