Portfolio Variance-- does it actually show up on exam? actually, difficult, experience, especially, understand

burning0spear

I've been trying to memorize and understand the formulas for portfolio variance but its a pain in the ass.. especially when you put in a 3 asset portfolio. In your experience, has this question actually come up in the exam? It seems like a difficult problem not worth one's time (during prep and in the actual exam).

Thoughts?