The condition that the pair of straight lines `ax^(2)+2xy+by^(2)=0` are parallel is:

Find the angle between the pair of straight lines x^(2) - 3xy +2y^(2) = 0

Find the angle between the pair of straight lines x^(2) - 3xy +2y^(2) = 0

If h^(2)=ab then the angle between the pair of straight lines given by ax^(2)+2hxy+by^(2)=0 is

Obtain the condition that a line of the pair of lines ax^2 + 2hxy + by^2 = 0 , Coincides with to a line of the pair of lines px^2 + 2qxy + ry^2 = 0

Find the condition that the one of the lines given by ax^2+2hxy+by^2=0 may be perpendicular to one of the lines given by a'x^2+2h'xy+b'y^2=0

Find the condition that the one of the lines given by ax^2+2hxy+by^2=0 may be perpendicular to one of the lines given by a'x^2+2h'xy+b'y^2=0

The condition for which the straight line ax+by+c=0 will be parallel to x - axis -

Fouation of the pair of straight lines through origin and perpendicular to the pair of straight lines 5x^(2)-7xy-3y^(2)=0 is