Find the equation of an ellipse the distance between the foci is 8 units and the distance between the directrices is 18 units.

Find the equation of ellipse whose distance between foci is 8 units and distance between the directrices is 18 units.

In an ellipse the distance between the foci is 8 and the distance between the directrices is 25. The length of major axis, is

In an ellipse the distance between the foci is 8 and the distance between the directrices is 25, then the ratio of the length of major and minor axis is

In an ellipse the distance between the foci is 8 and the distance between the directrices is 25. The length of major axis is : (A) 5sqrt(2) (B) 10sqrt(2) (C) 20sqrt(2) (D) none of these

Consider a circle C : x^2+y^2-8y+12=0 and an ellipse E :(x^2)/(a^2)+(y^2)/(b^2)=1(a > ba n db<2)dot If the maximum perpendicular distance from the foci of the ellipse upon the tangent drawn to the circle is 7 units, and shortest distance between both the curves is 1 unit, then find the value of (a^2-2b^2)dot

Find the distance between the origin and the point : (15, -8)

Find the distance between the origin and the point : (8, -15)

Find the equation of the ellipse in the standard form given (i) latus rectum = 4 and distance between foci is 4sqrt(2) (ii) distance between foci is 8 and the distance between directrices is 32

Find the distance between the origin and the point : (-8, 6)

In an ellipse, the distances between its foci is 6 and minor axis is 8 . Then its eccentricity is