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背景在《实验班》的课堂上,复习椭圆与直线的位置关系时,其中有一个问题是“怎样判别直线与椭圆的位置关系.”学生甲:将直线方程与椭圆方程联立,消去y
Background In the class of “experimental class”, one of the problems when reviewing the relationship between the position of an ellipse and a straight line is “how to determine the position relationship between a straight line and an ellipse.” Student A: By combining the linear equation with the elliptic equation, y