In this paper, the limiting conditions of relevant test theorem are relaxed and the revised relevant test theorem and its proof are presented.
该文放宽了相关测试定理的限定条件，给出了修正后的相关测试定理及其证明。
In this paper, the existence theorem of midpoint chord of quadratic curve, as well as its proof, is given via methods of projective geometry and polarity principle.
文章利用射影几何方法及配极原理给出二次曲线中点弦存在性定理的证明。
Gives more general results on the gradualness of the median point of Lagranges median theorem and first median theorem for integrals and its succinct proof.
给出了拉格朗日微分中值定理和第一积分中值定理中值点的渐进性的更一般性的结果及其简洁证明。
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