计算(1/cos80)-(√3/sin80)
计算(1/cos80)-(√3/sin80)
计算 1/cos80-根号3/sin80
1/cos80º-根号3/sin80º=?
如何证明:(1除cos80度)减(根号3除以sin80度)=4
1/sin10°-√3/sin80°
不查表,计算1/sin10°-(根号3)/sin80°=
1/sin10°— √3/sin80°
求值:1/sin10°-√3/sin80°
求值[2sin50°+sin10°(1+√3tan10°)]*√2(sin80°)*(sin80°)
[2sin50°+sin10°(1+√3tan10°)]*√2(sin80°)*(sin80度)
1/sin10°-根号3/sin80°
求值:[2sin50°+sin10°(1+√3tan10°)]×√2sin80°