化简:(tan10'-^3)cos10'/sin50'

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化简:(tan10''-^3)cos10''/sin50''化简:(tan10''-^3)cos10''/sin50''化简:(tan10''-^3)cos10''/sin50''(tan10°-√3)×cos10°/

化简:(tan10'-^3)cos10'/sin50'
化简:(tan10'-^3)cos10'/sin50'

化简:(tan10'-^3)cos10'/sin50'
(tan10°-√3)×cos10°/sin50°
=(sin10°/cos10°-√3)×cos10°/sin50°
=(sin10°-√3cos10°)/sin50°
=2(cos60°sin10°-sin60°cos10°)/sin50°
=2×sin(10°-60°)/sin50°
=-2