If the lines joining the foci of an ellipse to an end of its minor axis are at right angles , then the eccentricity of the ellipse is e =

The angle between the lines joining the foci of an ellipse to an extremity of the minor axis is 90^(circ) , then the eccentricity of the ellipse is

The angle between the line joining the foci of an ellipse to one particular extremity of the minor axis is 90^@ . The eccentricity of the ellipse is :

The angle between the lines joining the foci of an ellipse to an extremity of its minor axis is 90^@ . The eccentricity is

If the angle between the lines joining the foci of any ellipse to an extremity of the minor axis is 90^0 , find the eccentricity. Also find the equation of the ellipse if the major axis is 2sqrt(2) .

If the angle between the lines joining the end points of minor axis of an elipes with its one focus is pi/2, then the eccentricity of the ellipse is-

S and T are foci of an ellipse and B is an end of the minor axis , if STB is an equilateral triangle , the eccentricity of the ellipse , is