If two of the lines represented by `ax^4 +bx^3y +cx^2 y^2+dxy^3+ay^4=0` bisects the angle between the other two, then

If two of the three lines represented by ax^3+ bx^2y +cxy^2+dy^3=0 may be at right angles then

if one of the lines the pair ax^2+2hxy+by^2=0 bisects the angle between positive directions of the axes , then a, b, h, satisfy the relation

If the pair of lines ax^2-2xy+by^2=0 and bx^2-2xy+ay^2=0 be such that each pair bisects the angle between the other pair , then |a-b| equals to

If the pairs of straight lines ax^(2)+2hxy-ay^(2)=0 and bx^(2)+2gxy-by^(2)=0 be such that each bisects the angles between the other, then

Statement I. Two of the straight lines represented by dx^3+cx^2y+bxy^2+ay^3=0 will be at right angles if d^2+bd+bc +a^2 =0 Statement II. Product of the slopes of two perpendicular line is -1

The angle between the lines ay^2-(1+lambda^2))xy-ax^2=0 is same as the angle between the line:

The lines y = mx bisects the angle between the lines ax^(2) +2hxy +by^(2) = 0 if

Show that the equation of the pair of lines bisecting the angles between the pair of bisectors of the angles between the pair of lines a x^2+2h x y+b y^2=0 is (a-b)(x^2-y^2)+4h x y=0.

The image of the pair of lines represented by ax^(2)+2hxy+by^(2)=0 by the line mirror y=0 is

If the angle between the two lines represented by 2x^2+5xy+3y^2+2y+4=0 is tan ^(-1) (m) , then m is equal to