The area of the quadrilateral with its vertices at the foci of the conics: `9x^2-16y^2-18x+32y-23=0` and `25x^2+9y^2-50x-18y+33=0` is :

The area of the quadrilateral with its vertices at the foci of the conics 9 x^2-16 y^2-18 x+32 y-23=0 and 25 x^2+9 y^2-50 x-18 y+33=0 , is

The foci of the hyperbola 9x^(2) -16y ^(2)+18x +32 y- 151=0 are

Write the eccentricity of the ellipse 9x^2+5y^2-18 x-2y-16=0.

The latus - rectum of the hyperbola : 9x^2-16y^2-18x-32y-151=0 is :

trace the following conics 9x^(2)-24xy+16y^(2)-18x-101y+19=0

The centre of the hyperbola 9x^2-16y^2-18x+64y-199=0 is

Write the eccentricity of the ellipse 9x^(2)+5y^(2)-18x-2y-16=0