1.已知P为抛物线x2=1/4y上的点,点P到x轴的距离比它到轴的距离大3,则点P的坐标是__2.已知椭圆x2/a2+y2/b2=1(a>b>0)的左焦点坐标为F,A(-a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于b/√7,则椭
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![1.已知P为抛物线x2=1/4y上的点,点P到x轴的距离比它到轴的距离大3,则点P的坐标是__2.已知椭圆x2/a2+y2/b2=1(a>b>0)的左焦点坐标为F,A(-a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于b/√7,则椭](/uploads/image/z/11560802-50-2.jpg?t=1.%E5%B7%B2%E7%9F%A5P%E4%B8%BA%E6%8A%9B%E7%89%A9%E7%BA%BFx2%3D1%2F4y%E4%B8%8A%E7%9A%84%E7%82%B9%2C%E7%82%B9P%E5%88%B0x%E8%BD%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E6%AF%94%E5%AE%83%E5%88%B0%E8%BD%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E5%A4%A73%2C%E5%88%99%E7%82%B9P%E7%9A%84%E5%9D%90%E6%A0%87%E6%98%AF__2.%E5%B7%B2%E7%9F%A5%E6%A4%AD%E5%9C%86x2%2Fa2%2By2%2Fb2%3D1%EF%BC%88a%3Eb%3E0%EF%BC%89%E7%9A%84%E5%B7%A6%E7%84%A6%E7%82%B9%E5%9D%90%E6%A0%87%E4%B8%BAF%2CA%EF%BC%88-a%2C0%EF%BC%89%2CB%EF%BC%880%2Cb%EF%BC%89%E4%B8%BA%E6%A4%AD%E5%9C%86%E7%9A%84%E4%B8%A4%E4%B8%AA%E9%A1%B6%E7%82%B9%2C%E8%8B%A5F%E5%88%B0AB%E7%9A%84%E8%B7%9D%E7%A6%BB%E7%AD%89%E4%BA%8Eb%2F%E2%88%9A7%2C%E5%88%99%E6%A4%AD)
1.已知P为抛物线x2=1/4y上的点,点P到x轴的距离比它到轴的距离大3,则点P的坐标是__2.已知椭圆x2/a2+y2/b2=1(a>b>0)的左焦点坐标为F,A(-a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于b/√7,则椭
1.已知P为抛物线x2=1/4y上的点,点P到x轴的距离比它到轴的距离大3,则点P的坐标是__
2.已知椭圆x2/a2+y2/b2=1(a>b>0)的左焦点坐标为F,A(-a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于b/√7,则椭圆的离心率为__
3.若直线ax+by=1与圆x2+y2=1相交,则点P(a,b)与圆的位置关系是__
1.已知P为抛物线x2=1/4y上的点,点P到x轴的距离比它到轴的距离大3,则点P的坐标是__2.已知椭圆x2/a2+y2/b2=1(a>b>0)的左焦点坐标为F,A(-a,0),B(0,b)为椭圆的两个顶点,若F到AB的距离等于b/√7,则椭
1(1,4)或(-1.4)
2 (7-√7)/3
3在圆上