As a mathematics graduate (who's taught both GCSE and A-level maths), I often attempt to answer maths questions on AB but it's usually an absolute nightmare, simply because the questioner struggles to find a way to write the question and then I have to find a way to write the answer. (I've sometimes resorted to putting the answer on paper, scanning it, putting the image on Tinypic and then posting a link to it). Until someone comes up with a way of typing mathematical notation in AB, it's always going to be hard to ask and answer mathematics questions.
Chris