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Mathematics of Henan College Entrance Examination in 2009
Let the center of the ellipse be at the origin, the focus be on the X axis, the eccentricity e=, and the farthest distance from point P(0, 1) to the point on the ellipse be called the equation for finding the ellipse.

answer

Solution: Let the elliptic equation =1(a >; B>0), M(x, y) is the point on the ellipse, a=2b,

+4b2+3(-b≤y≤b),

If b