化简:tan(x-60°)tanx+tanxtan(x+60°)+tan(x+60°)tan(x-60°),
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化简:tan(x-60°)tanx+tanxtan(x+60°)+tan(x+60°)tan(x-60°),
![化简:tan(x-60°)tanx+tanxtan(x+60°)+tan(x+60°)tan(x-60°),](/uploads/image/z/324081-9-1.jpg?t=%E5%8C%96%E7%AE%80%3Atan%28x-60%C2%B0%29tanx%2Btanxtan%28x%2B60%C2%B0%29%2Btan%28x%2B60%C2%B0%29tan%28x-60%C2%B0%EF%BC%89%2C)
![](http://img.wesiedu.com/upload/4/56/456de8d2562b49ec235d400de94b849d.jpg)
再问: 要过程啊
再答: FullSimplify:彻底化简
化简:tan(x-60°)tanx+tanxtan(x+60°)+tan(x+60°)tan(x-60°),
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