4. The Capital Market Line (CML.) equation is given by: (R.) = R4 + (BCR-BA) (a) Use the Capital Market Line (CML) equation to derive the Security Market Line (SML) equation. Make sure you show all the steps involved in the derivation and their logical connections. (10 points) (b) Even though the SML is derived from the CML, the two equations are very different. What is the main difference between the CML and SML? (6 points)