Find the eccentricity of the ellipse `x^2/4+y^2/16=1`

Find the eccentricity of the ellipse x^2/81+y^2/36=1

Find the eccentricity of the ellipse (x^2)/(9)+(y^2)/(4)=1

Find the eccentricity of the ellipse 25x^2+16y^2=400 .

Find the coordinates of the foci, the vertices, the lengths of major and minor axes and the eccentricity of the ellipse 9x^(2)+4y^(2)=36

Find the eccentricity of the elipse ( x^(2))/( 16)+ ( y^(2) )/( 9) =1

Find the centre of the ellipse (x-2)^2/4+(y-4)^2/16=1

Find the coordinates of the vertices, length of the latus rectum and eccentricity of the ellipse x^(2)/49 + y^(2)/36 = 1

The eccentricity of the ellipse 5 x^(2)+9 y^(2)=1 is

Find the lengths of major and minor axes,the coordinate of foci, vertices and the eccentricity of the ellipse 3x^(2)+2y^(2)=6 . Also the equation of the directries.

Find the eccentricity of an ellipse (x^2)/(a^2)+(y^2)/(b^2)=1 whose latus rectum is half of its major axis.