The two members of a binary star system are a distance d apart, and they revolve about their common center of mass with angular velocity w. show that are doppler splitting (delta lenda) between the spectral lines from the two stars has a maximum value of ( lenda w d/c ) , provided the orbital plane of thwe star system is edgewise ae seeen from the earth , what would the spitting be if the orbital plane was inclinde at a certain angle ?