the equation `3(x+y-5)^2+2(x-y+7)^2=6`represents an ellipse whose centre is

The -equation (x-x_1)(x-x_2)+(y-y_1)(y-y_2)=0 Represents a circle whose centre is

Show that the equation (10x-5)^(2)+(10y-5)^(2)=(3x+4y-1)^(2) represents an ellipse, find the eccentricity of the ellipse.

The equation (x-5)^(2)+(x-5)(y-6)-2(y-6)^(2)=0 represents

The equation (x^(2))/(10-a)+(y^(2))/(4-a)=1 represents an ellipse , if

If the equation (x^(2))/(16 -K) + (y^(2))/(5-K) = 1 represents an ellipse , then

The equation x^(2)+4xy+4y^(2)-3x-6y-4=0 represents a

Show that the equation 3x^(2)+3y^(2)+6x-4y-1=0 represents a circle Find its centre and radius.