• (本小题共13分)试题及答案-解答题-云返教育

    • 试题详情

      (本小题共13分)

      试题解答


      见解析
      ·········1分
      ··············2分
      ·········5分
      ··········6分
      ·········7分
      ·········8分
      ····9分
      ·········10分
      ·········11分
      又当直线
      斜率不存在时???直线方程为=2,中点为(2,0)满足上述方程,
      所以,所求中点N的轨迹方程为:
      ·························13分
    MBTS ©2010-2016 edu.why8.cn