Prove that the lines `2x^2+6xy+y^2=0` are equally inclined to the lines `4x^2+18xy+y^2=0`

The lines x^(2)-12xy+6y^(2)=0 are equally inclined to the line

The lines 36x^(2)-33xy-20y^(2)=0 are equally inclined to the line

If the lines x^(2)+(2+k)xy-4y^(2)=0 are equally inclined to the coordinate axes,then k=

The straight lines represented by the equation 135x^(2)-136xy+33y^(2)=0 are equally inclined to the line x-2y=7 (b) x+2y=7x-2y=4( d) 3x+2y=4

The straight lines represented by the equation 135x^2+136xy+33y^2=0 are eqally inclined to the line

If two lines of x^(2)+3(l-5)xy-5y^(2)=0 are equally inclined with the axes then l=

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

Show that the following pairs of lines are equally inclined to each other. 2x^(2)+6xy+y^(2)=0, 4x^(2)+18xy+by^(2)=0 , b=

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

Show that the pairs of straight lines 2x^2+6x y+y^2=0 and 4x^2+18 x y+y^2=0 are equally inclined,then b is equal to