PQ为过椭圆x²/a²+y²/b²=1(a>b>0)的左焦点的弦且OP⊥OQ(O为原点),求椭圆离心率的取值范围.没过程说一下思路也行.如果有哪位同学能搜到原题的讲解,请发个链接来我用完全的代
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![PQ为过椭圆x²/a²+y²/b²=1(a>b>0)的左焦点的弦且OP⊥OQ(O为原点),求椭圆离心率的取值范围.没过程说一下思路也行.如果有哪位同学能搜到原题的讲解,请发个链接来我用完全的代](/uploads/image/z/7270962-42-2.jpg?t=PQ%E4%B8%BA%E8%BF%87%E6%A4%AD%E5%9C%86x%26sup2%3B%2Fa%26sup2%3B%2By%26sup2%3B%2Fb%26sup2%3B%3D1%EF%BC%88a%3Eb%3E0%EF%BC%89%E7%9A%84%E5%B7%A6%E7%84%A6%E7%82%B9%E7%9A%84%E5%BC%A6%E4%B8%94OP%E2%8A%A5OQ%EF%BC%88O%E4%B8%BA%E5%8E%9F%E7%82%B9%EF%BC%89%2C%E6%B1%82%E6%A4%AD%E5%9C%86%E7%A6%BB%E5%BF%83%E7%8E%87%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.%E6%B2%A1%E8%BF%87%E7%A8%8B%E8%AF%B4%E4%B8%80%E4%B8%8B%E6%80%9D%E8%B7%AF%E4%B9%9F%E8%A1%8C.%E5%A6%82%E6%9E%9C%E6%9C%89%E5%93%AA%E4%BD%8D%E5%90%8C%E5%AD%A6%E8%83%BD%E6%90%9C%E5%88%B0%E5%8E%9F%E9%A2%98%E7%9A%84%E8%AE%B2%E8%A7%A3%2C%E8%AF%B7%E5%8F%91%E4%B8%AA%E9%93%BE%E6%8E%A5%E6%9D%A5%E6%88%91%E7%94%A8%E5%AE%8C%E5%85%A8%E7%9A%84%E4%BB%A3)
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