LoS 29.a begins with “Explain the M-M propositions… “. After completing the material of Schweser and going through the EOC exercises of the CFAI textbook, I noticed that CFA has some questions where we are supposed to calculate the cost of equity or debt, based on the formulas included in LoS 29.a, while Schweser does not.
Since the LoS is about “explaining” and bearing in mind that Schweser material is supposed to help us to save time and avoid reading excess material, should I go through the effort of learning how to calculate costs based on the LoS formulas? In your opinion, the CFA textbook questions are for completeness of knowledge or do they give a sign that CFAI expects for candidates to be able to calculate costs, even though the LOS is about explaining?
Thank you