设椭圆x^2/16+y^2/b^2=1(4>b>0)的左,右焦点分别为F1,F2,点P(4,b)满足|PF2|=|F1F2|.(1)求椭圆的方程.(2)若直线PF2与圆(x+1)^2+(y^根号3)^2=16相交于M,N两点求|MN|
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![设椭圆x^2/16+y^2/b^2=1(4>b>0)的左,右焦点分别为F1,F2,点P(4,b)满足|PF2|=|F1F2|.(1)求椭圆的方程.(2)若直线PF2与圆(x+1)^2+(y^根号3)^2=16相交于M,N两点求|MN|](/uploads/image/z/3813468-60-8.jpg?t=%E8%AE%BE%E6%A4%AD%E5%9C%86x%5E2%2F16%2By%5E2%2Fb%5E2%3D1%284%3Eb%3E0%29%E7%9A%84%E5%B7%A6%2C%E5%8F%B3%E7%84%A6%E7%82%B9%E5%88%86%E5%88%AB%E4%B8%BAF1%2CF2%2C%E7%82%B9P%284%2Cb%29%E6%BB%A1%E8%B6%B3%7CPF2%7C%3D%7CF1F2%7C.%EF%BC%881%EF%BC%89%E6%B1%82%E6%A4%AD%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8B.%EF%BC%882%EF%BC%89%E8%8B%A5%E7%9B%B4%E7%BA%BFPF2%E4%B8%8E%E5%9C%86%EF%BC%88x%2B1%29%5E2%2B%28y%5E%E6%A0%B9%E5%8F%B73%EF%BC%89%5E2%3D16%E7%9B%B8%E4%BA%A4%E4%BA%8EM%2CN%E4%B8%A4%E7%82%B9%E6%B1%82%7CMN%7C)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/08/07 03:36:08