The distance of a point `(x_1, y_1)` from two straight lines which pass through the origin of coordinates is `pdot` Find the combined equation of these straight lines.

If the distance of a point (x_(1),y_(1)) from each of the two straight lines, which pass through the origin of coordinates, is delta , then the two lines are given by

Which of the following straight lines passes through the origin?

Find the differential equation of the family of all straight lines passing through the origin.

Find the equation of the straight line which passes through the point (0,3) and is perpendicular to the straight line x+y+1=0

Find the equations of the straight lines which pass through the origin and trisect the portion of the straight line 2x+3y=6 which is intercepted between the axes.

Find the equation f eth straight lines passing through the origins and making an angle of 45^0 with the straight line sqrt(3)x+y=11.

What is the equation of the straight line which passes through the point of intersection of the straight lines x+2y=5 and 3x+7y=17 and is perpendicular to the straight line 3x+4y=10 ?