1. The problem statement, all variables and given/known data (c) See if you can show that L1 and L2 can be replaced by the equivalent inductor, Leq, of FIGURE 4(b) where Leq = L1L2-M^2/L1+L2-2M 2. Relevant equations 3. The attempt at a solution I+I1+I2 Leq = V(L2-M)/jω(L1*L2-M^2) + V(L1-M)/jω(L1*L2-M^2) = V*(L1+L2)-2M/jω(L1*L2-M^2) V/jω*Leq = L1*L2-M^2/L1+L2-2M Can anybody tell me if I'm close with this one or not? Struggling for days with it! Any advice is appreciated!