If the major axis of an ellipse has the same length, the minor axis length and the focal distance form an arithmetic sequence, then the eccentricity is? How to calculate

If there is a 2B = a + C, then there are four (a \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\when # 178; + 2C / A-3 = 0 and E = C / A, it becomes 5E -

RELATED INFORMATIONS

1. If the focal length, minor axis length and major axis length of an ellipse form an arithmetic sequence, then the eccentricity is______ ．
2. 8. Given that the equation of ellipse C is, try to determine the value range of M, so that for a straight line, two different points on ellipse C are symmetrical about the straight line 8. It is known that the equation of ellipse C is x2 / 4 + Y2 / 3 = 1. Try to determine the value range of M, so that for the straight line y = 4x + m, there are two different points on ellipse C symmetrical about the straight line
3. It is known that the focal length of ellipse C equation is 4 and the equation of solving ellipse through P [√ 2, √ 3]
4. If the focal length of the ellipse x2m + y24 = 1 is 2, then the value of M is equal to______ ．
5. If the ellipse x ^ 2 / m ^ 2 + y ^ 2 / 4 = 1 passes through the point (- 2, √ 3), then its focal length is the required process. Thank you
6. If the focal length of the ellipse x2m + y24 = 1 is 2, then the value of M is equal to______ ．
7. If the focal length of ellipse x ^ 2 / M + y ^ 2 / 2 = 1 is the same as that of ellipse x ^ 2 / 8 + y ^ 2 / 18 = 1, then the value of M is?
8. If the focal length of ellipse x ^ 2 / m ^ 2 + y ^ 2 / 4 = 1 is 2, then the value of positive number m is 2______
9. Given that the elliptic equation is x28 + y2m2 = 1, the focal length is equal to () A. 28−m2B. 222−|m|C. 2m2−8D. 2|m|−22
10. Taking the vertex of the major axis of the ellipse with 25 / x square plus 9 / y square equal to 1 as the focus, the hyperbolic equation with the focus as the vertex is?
11. The eccentricity of an ellipse is () A. 45B. 35C. 25D. 15
12. If the length of the major axis, the length of the minor axis and the focal distance of an ellipse form an arithmetic sequence, then the eccentricity of the ellipse is zero______ ．
13. The eccentricity of an ellipse is () A. 45B. 35C. 25D. 15
14. If the length of the major axis, the length of the minor axis and the focal distance of an ellipse form an arithmetic sequence, then the eccentricity of the ellipse is zero______ ．
15. If the focal length, minor axis length and major axis length of an ellipse form an arithmetic sequence, then the eccentricity is______ ．
16. The two focal points of the ellipse y2a2 + x2b2 = 1 (a > b > 0) are F1 (0, - C), F2 (0, c) (c > 0), the eccentricity e = 32, and the shortest distance from the focal point to the point on the ellipse is 2-3
17. It is known that the left and right focal points of the ellipse x ^ 2 / A ^ 2 + y ^ 2 / b ^ 2 = 1 are F1 and F2 half focal length is c. the chord f1m of the ellipse is made through F1 and extended to N, so that Mn = MF2. It is proved that the trajectory of n is a circle and its equation is solved
18. It is known that the eccentricity of ellipse C: x ^ 2 / A ^ 2 + y ^ 2 / b ^ 2 = 1 (a > b > 0) e = √ 2 / 2, the left and right focal points are F1, F2 and P (2, √ 3) Let the line L: y = KX + m intersect with the ellipse C at two points M. n. the inclination angles of the lines F2m and f2n are α, β, and α + β = π (PIE). Let's ask whether the line L passes the fixed point? If so, find the coordinates of the point
19. It is known that the left and right focal points of ellipse C: x2a2 + y2b2 = 1 (A & gt; B & gt; 0) are F1 and F2 respectively, the eccentricity e = 12, and the line y = x + 2 passes through the left focal point F1. (1) find the equation of ellipse C; (2) if P is a point on ellipse C, find the range of ∠ f1pf2
20. A focal point is f (2 radical 3,0), a = 2c, find the analytic expression of ellipse