Find the direction cosines of the strating line passing through the point `P (7, -5, 10) and Q (8, -3, 8).`

Find the equation of the straight line passing through the points (-2, 3) and (6, -4).

Using determinant find the straight line passing through the points (3,1) and (9,3).

Find the equation of the line passing through the points (1,3) and (-2,-1).

Find the equation of the straight line passing through the point (i) (3, 5) and parallel to the line 4x - 3y + 1 = 0

Find the equation of the straight line passing through the point (ii) (2, -3) and perpendicular to 4x - 5y + 9 = 0

Find the vecto equation of the line passing through the points A (1,-1,3) and B (-2, 1, 0).

Find the equation of the straight line passing through the point (i) (-1, 2) and parallel to 3x - 4y + 1 =0

Find the equation of the straight line passing through the point (ii) (1, -5) and perpendicular to the line 2x + 5y + 4 = 0

Find the equation of the straight line passing through the point (2, 3) and parallel to the straight line joining the points P(3, -4) and Q(-5, 6).

Find the equation of the straight line passing through the point (3, 2) and the point of intersection of the lines 3x + 2y - 1 = 0 and x - 3y + 5 = 0.