The equations below are approximations of the magnitude of theelectric field of an electric dipole, at points along the dipoleaxis. Consider a point P on that axis at distancez = 39.00d from the dipole center (d isthe separation distance between the particles of the dipole). LetEappr be the magnitude of the field at pointP as approximated by the equations below. LetEact be the actual magnitude. What is the ratioEappr /Eact?