Question

Direction ratios of a vector parallel to line (x–1)/2 = – y = (2z+1)/6 are :

If a line makes an angle of 30° with the positive direction of x-axis, 120° with the positive direction of y-axis, then the angle which it makes with the positive direction of z-axis is :

Find the equation of the line which bisects the line segment joining points A(2, 3, 4) and B(4, 5, 8) and is perpendicular to the lines (x–8)/3 = (y+19)/(–16) = (z–10)/7 and (x–15)/3 = (y–29)/8 = (z–5)/(–5).

If α, β and γ are the angles which a line makes with positive directions of x, y and z axes respectively, then which of the following is not true?