Joint equation of bisectors of angles between the two lines `x^(2)+2xy.cot theta+y^(2)=0` is

The equation of bisectors of the angle between the two lines 2 x^(2)-3 x y+y^(2)=0 is

The joint equation of bisectors of the angles between the lines given by 5x^(2)+6xy-y^(2)=0 , is

The equation of the bisectors of the angle between the two straight lines 2x^(2)3xy+y^(2)=0 is

The joint equation of lines which bisect the angle between the two lines x^(2)+3xy+2y^(2)=0 is

11.The acute angle between the pair of lines x^(2)+2xy cot theta+y^(2)=0 is

The joint equation of bisectors of angles between lines x=5 and y=3 is

The joint equation of bisectors of angles between lines x=5 and y=3 is

If 7x^(2)-kxy-7y^(2)=0 represents the joint equation of the bisectors of the angles between the lines given by 2x^(2)-7xy+4y^(2)=0 , then k=

The equation of the bisectors of angle between the lines x^(2)-4xy+y^(2)=0 is

The equation of the bisectors of angle between the lines x^(2)-4xy+y^(2)=0 is