如图.已知椭圆 x 2 a 2 + y 2 b 2 =1(a>b>0) 的长轴为AB,过点B的直线l与x轴垂直,椭圆的离心率 e= 3 2 ,F 1 为椭圆的左焦点且 A F 1 ? F 1 B =1. (Ⅰ)求椭圆的标准方程; (Ⅱ)设P是椭圆上异于A、B的任意一点,PH⊥x轴,H为垂足,延长HP到点Q使得HP=PQ.连接AQ并延长交直线l于点M,N为MB的中点,判定直线QN与以AB为直径的圆O的位置关系.
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