If RT, Rh represent condition for reciprocity in case of transmission parameter and hybrid parameter respectively and similarly ST, Sh represent condition for symmetry in case of transmission parameter and hybrid parameter respectively then match the following : (RT (a) A = D (Rh (b) h12 = h21 (ST (c) AD - BC = 1 (Sh (d) h12 = - h21 (e) B = c (f) Δh = 1 |