" If `e` is eccentricity of the ellipse `2x^(2)+3y^(2)=6` and `r`is the radius of the circle `x^(2)+y^(2)-2x+4y+4=0` then `e^(2)+r`=

Eccentricity of the ellipse 4x^(2)+y^(2)-8x-2y+1=0

The eccentricity of the ellipse x^(2)+4y^(2)+8y-2x+1=0 , is

Eccentricity of the ellipse 4x^(2)+y^(2)-8x+2y+1=0 is

Find the centre and radius of the circle x^(2)+y^(2)+2x-4y-4=0

Find the image of the circle x^(2)+y^(2)-2x+4y-4=0 in the line 2x-3y+5=0

The radius of circle x^2+y^2-6x+4y-12=0 is

If e_(1) is the eccentricity of the conic 9x^(2)+4y^(2)=36 and e_(2) is the eccentricity of the conic 9x^(2)-4y^(2)=36 then e12-e22=2 b.e22-e12=2c.2 3

If e be the eccentricity of ellipse 3x2+2xy+3y^(2)=1 then 8e^(2) is