Tag : three dimensional geometry
- A line is passing through (α, β, γ) and its direction cosines are l, m, n then the equations of the line are -
- Let a, b, c be the direction ratios of a line then direction cosines are-
- Let l_1, m_1, n_1 and l_2, m_2, n_2 be the direction cosines of two st-lines. Both the lines are perpendicular to each other, if-
- The direction ratio of the normal to the plane 7x + 4y - 2z + 5 = 0 are-