The value of 'k' for which the set `{(x, y)|x^2+y^2-2x - 2y +1 <=0}nn {(x,y)|2x+y+k>=0}` contains only one point in common is

The value of 'c' for which the set {(x,y)|x^2+y^2+2x le 1}nn{(x,y)|x-y+cle0} contains only one point in common is

The value of 'c' for which the set {(x,y)|x^2+y^2+2x le 1}nn{(x,y)|x-y+cle0} contains only one point in common is

The value of 'c' for which the set {(x,y)|x^(2)+y^(2)+2x<=1}nn{(x,y)|x-y+c<=0} contains only one point in common is

The value of 'c' for which the set {(x, y)|x^2+y^2+2xle1}bigcap{(x, y)|x-y+cge0)} contains only one point in common is

The value of k for which the circle x^(2) + y^(2) -4x + 6y +3 =0 will bisect the circumferece of the circle x^(2) +y^(2) +6x -4y +k=0 is

The value of k for which the circle x ^(2) +y ^(2) - 4x + 6y + 3=0 will bisect the circumference of the circle x ^(2) + y ^(2) + 6x - 4y + k =0 is

The value of k for which y^(2)+x y+k x^(2)-x-2 y+k=0 represents two lines is

The value of k for which the circles x^2 - y^2 + 3x - 7y +k = 0 and x^2 + y^2 - 4x + 2y - 14 = 0 would intersect orthogonallys

The set of real values of k for which the equation (k+1)x^(2)+2(k-1)xy+y^(2)-2x+2y+3=0 represents an ellipse is

The set of real values of k for which the lines x + 3y +1=0, kx + 2y-2=0 and 2x-y + 3 = 0 form a triangle is