The equations of two lines through (0,a), which are at distance 'a' units from the point (2a, 2a) are

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

The equation of the line passing through (1,2) and having a distance equal to 7 units from the points (8,9) is

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

Find the equation of two straight lines which are parallel to x+7y+2=0 and at unit distance from the point (1,-1) .

Equation of the straight line passing through (1,1) and at a distance of 3 units from (-2,3) is

If the equation of the plane passing through (1,2, 3) and situated at a maximum distance from point (2, 3, 4) is P = 0, then the distance (in units) of P = 0 from origin is

If each line of a pair of lines passing through origin is at a perpendicular distance of 4 units from the point (3, 4) , then the equation of the pair of lines is