If `(x-1/2)^2+(y+1/2)^2=(k^2(x+y+1)^2)/8` represents an ellipse then k takes value

If (x^(2))/((a-1)(a-2))+(y^(2))/(a(a-3)) =1 represents an ellipse then the value of a belongs to

The set of values of a for which (13x-1)^(2)+(13y-2)^(2)=a(5x+12y-1)^(2) represents an ellipse is

The set of values of 'a' for which (13 x-1 ) ^(2) + (13y -2) ^(2) =a( 5x+ 12y -1)^(2) represents an ellipse if

If the equation (x^(2))/(9-k)+(y^(2))/(5-k)=1 represents an ellipse then

If the equation 5[(x-2)^(2)+(y-3)^(2)]=(lambda^(2)-2 lambda+1)(2x+y-1)^(2) represents an ellipse then

(x^(2))/(16-k)+(y^(2))/(k-9)=1 represents ellipse if

Equation (x^(2))/(k^(2)-3)+(y^(2))/(2k)=1 represents an ellipse with y-axis as the major axis if k in

If the equation k(x+1)^2/3 + (y+2)^2/4 =1 represents a circle, then the value of k is:

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

If x^(2)/(12-k) -(y^(2))/(k-8)=1 represents a hyperbola then