For level-2 would you suggest going literally by the LOS- So if a reading has 10 formulas (for eg. Active Portfolio Management), but LOS for these reading never mention the word ‘Calculate/Estimate’ its mostly “Explain/Describe” etc…, is it reasonable to assume that formula in this reading should not be the focus on the exam.
That’s how I’d interpret those LOSs. If you can explain/describe how they work (e.g., the influences, sensitivities, assumptions, shortcomings, and so on), that sounds sufficient.
Personally, I’d probably learn the formulae, but that’s just me: I like learning formulae.
I actually had a fun time deriving the active PM equations. You only need to memorize two things: (i) the utility function (VA) and (ii) budget constraint (IR).
Something that I actually understand and not straight memorize like fixed income…