The lines given by the equation `(2y^2+3xy-2x^2)(x+y-1)=0` form a triangle which is

The triangle formed by the lines whose combined equation is (y^2 - 4xy - x^2)(x + y - 1) = 0 is

The triangle formed by the lines whose combined equation is (y^(2)-4xy-x^(2))(x+y-1)=0 is

Orthocentre of the triangle formed by the lines whose combined equation is (y ^(2) - 6xy -x ^(2)) ( 4x -y +7) =0 is

Orthocentre of the triangle formed by the lines whose combined equation is (y ^(2) - 6xy -x ^(2)) ( 4x -y +7) =0 is

A triangle is formed by the lines whose combined equation is given by (x-y-4)(xy-2x-y+2)=0 The equation of its circumcircle is:

A triangle is formed by the lines whose combined equation is given by (x-y-4)(xy-2x-y+2)=0 The equation of its circumcircle is: