It is known that the center of the ellipse is at the origin, the focus is on the y-axis, the focal length is 4, and the eccentricity is 2 / 3, It is known that the sum of the distances from a point on the ellipse with the focus on the x-axis and the center on the origin to the two focuses is 4. If the root of the eccentricity of the ellipse is 3 / 2, then the equation of the ellipse is

It is known that the center of the ellipse is at the origin, the focus is on the y-axis, the focal length is 4, and the eccentricity is 2 / 3, It is known that the sum of the distances from a point on the ellipse with the focus on the x-axis and the center on the origin to the two focuses is 4. If the root of the eccentricity of the ellipse is 3 / 2, then the equation of the ellipse is

Let e = 32, 2A = 4,
∴a=2,b=1,
The elliptic equation is x24 + y2 = 1