Question

Which correspondence correctly gives the direction angles of a vector with the positive coordinate axes?

Options

• \[\alpha\] with the Y-axis, \[\beta\] with the Z-axis, and \[\gamma\] with the X-axis

• \[\alpha\], \[\beta\], and \[\gamma\] are direction ratios

• \[\alpha\] with the X-axis, \[\beta\] with the Y-axis, and \[\gamma\] with the Z-axis

• \[\alpha\] with the Z-axis, \[\beta\] with the X-axis, and \[\gamma\] with the Y-axis

Answer 1

Direction angles are measured with the positive coordinate axes. The angles with the X-axis, Y-axis, and Z-axis are \[\alpha\], \[\beta\], and \[\gamma\], respectively.