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如何判定曲线系是否过定点?如果过定点,那么如何求出定点的坐标?这些是研究曲线系过定点问题中的两个主要问题.本文谈谈曲线系过定点的判定及求解的三种方法. 一、根据恒等式成立的充要条件来判定和求解将曲线系方程按参数整理,此时可以把该曲线系的方程看成关于参数的恒等式.这样就可根据恒等式成立的充要条件来判定曲
How to determine whether the curve system is over-fixed? If the coordinates are too fixed, then how to find the coordinates of the fixed point? These are the two main problems in the study of the problem of curve set over-fixed point. This article talks about the determination of the fixed point of the curve system and the three methods to solve it. First, according to the necessary and sufficient conditions for the establishment of the identity to determine and solve the curve system equations arranged by parameters, this equation can be regarded as the parameters of the equation identities. This can be determined according to the necessary and sufficient conditions of identity to determine song