| 用正切代换方法证明几何不等式 |
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| 引用本文： | 刘保乾.用正切代换方法证明几何不等式[J].肇庆学院学报,2012,33(5):1-4. |
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| 作者姓名： | 刘保乾 |
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| 作者单位： | 西藏自治区组织编制信息管理中心,西藏拉萨,850000 |
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| 摘 要： | 提出用正切代换方法证明三角形几何不等式和圆内接四边形不等式；给出了代换公式，诸多实例表明该方法是有效的；同时，针对正切代抉方法，提出了2个待解决的问题．
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| 关 键 词： | 三角形几何不等式 圆内接四边形不等式 正切代换方法 |
Proving Geometric Inequality with the Method of Tangent Substitution |
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| LIU Baoqian.Proving Geometric Inequality with the Method of Tangent Substitution[J].Journal of Zhaoqing University (Bimonthly),2012,33(5):1-4. |
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| Authors: | LIU Baoqian |
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| Institution: | LIU Baoqian(Information Center,Tibet Personnel Bureau,Lhasa,Tibet 850000,China) |
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| Abstract: | The method for proving geometric inequality in triangle & round inscribed quadrangle is built on the basis of tangent substitution,and the formula of tangent substitution is given.A number of examples state that the method is effective.Two outstanding questions are posed in the end based on the method of tangent substitution. |
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| Keywords: | geometric inequality in triangle inequality round inscribed quadrangle the method of tangent substitution |
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