The difference of the tangents of the angle made by the lines `3x^(2)-2xy-y^(2)=0` with `x`-axis is

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

Angle between the lines 2x^(2)-3xy+y^(2)=0 is

The difference of the tangents of the angles which the lines x^(2)(sec^(2)-sin^(2)theta)-2xy tan theta +y^(2)sin^(2) theta=0 make with X-axis, is

Measure of angle between lines 3x^(2)-8xy-3y^(2)=0 is

The difference of the slopes of the lines 3x^(2)-4xy+y^(2)=0 is

Area of the triangle formed by the lines 2x-y=6 and 3x^(2)-4xy+y^(2)=0 is

The difference of the slopes of the lines given by 3x^(2)-4xy+y^(2)=0 is

The intercept made by the pair of lines 2x^(2)+xy-8y^(2)-2x+7y+1=0 on the y -axis is