om their MRCA is given by = (1 - v)2t + (1 - (1 - v)29/(Ak4) if = K (4.63) We obtain: — — 1029M (tin / en if i <K z(0 = (7414 • hi IT = K* = Ei • MO = — K ri d0. — + K K* — (4.64) O0: limit St, This gives z = (71A; • hi)0, taking into account the fact that t ranges between 1 and 00 00 1