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在学习北师大版新课标数学教材选修2—1第三章第一节椭圆时,我们班在老师的组织下就椭圆标准方程的推导开展了一次探究性学习,大家互相启发,最终得到了4种不同的方
In the study of Beijing Normal University New Curriculum Mathematics textbook elective 2-1 Chapter III of the first section oval, our class under the teacher’s organization on the derivation of elliptical standard equations to carry out an exploratory study, we inspire each other and eventually get 4 different ways