The equation of set of lines which are at a constant distance 2 units from the origin is

Find the equations to the straight lines which are at a distance of 2 unit from the origin and which pass throught the points (4,-2).

Find the equations to the straight lines which are at a distance of 2 unit from the origin and which pass through the point of intersection of the lines 3x+4y=4 and 2x+5y+2=0 .

Form the differential equation of family of lines situated at a constant distance p from the origin.

Form the differential equation of family of lines situated at a constant distance p from the origin.

Form the differential equation of family of lines situated at a constant distance p from the origin.

Form the differential equation of family of lines situated at a constant distance p from the origin.

Find the equations to the straight lines which are at a distance of 1 unit from the origin and which pass through the point (3,1).

The differential equation of the family of straight lines which are at a distance 3' units from origin is

The locus of the point P which is at a constant distance of 2 units from the origin and which lies in the first or the second quadrants is __________.