The obtuse angle between lines y = -2 and y = x + 2 is.

The coordinates of mid - point of portion of line cut by coordinates axis are (3,2) , the equation of the line is

A line moves in such a way that the sum of  reciprocals of intersection on two mutually perpendicular lines by the line remains constant than the line passes through

The length of perpendicular from origin to the line    is.

If lines 3x - y =2,5x + ay = 3 and 2x + y = 3 are concurrent ,then a =

Point (0,0), (2,-1) and (9,2) are vertices of a triangle , then cos B =

Lines 15x - 18y + 1 = 0 , 12x +10 y - 3 = 0 and 6x + 66y - 11 = 0 are

The portion of a line between axis is divided by point (-5,4) in the ratio 1 : 2.The equation of line is

The lines passing through (3,2) and inclined at angle 60^o with √3 x + y = 1 is.

If lines 3x - 4y - 13 = 0,8x - 11y - 33 = 0 and 2x - 3y + λ = 0 are concurrent , λ =