If the points A(-1, 3, 2), B(-4, 2, -2) and C(5, 5, λ) are collinear then the value of λ is

If (a1, b1, c1) and (a2, b2, c2) be the direction ratios of two parallel lines then

If a line makes angles α, β and γ with the x-axis, y-axis and z-axis respectively then (sin2 α + sin2 β + sin2 γ) = ?

The straight line

The angle between two lines having direction ratios 1, 1, 2 and 4 is

The Cartesian equations of a lines are What is its vector equation?

The vector equation of the x-axis is given by

The coordinates of the point where the line through the points A(5, 1, 6) and B(3, 4, 1) crosses the yz-plane is

The Cartesian equations of a line are Its vector equation is

A line passes through the point A(5, -2, 4) and it is parallel to the vector The vector equation of the line is

A line is perpendicular to two lines having direction ratios 1, -2, -2 and 0, 2, 1. The direction cosines of the line are