Is there only 2 departments in Anhui senior three science mathematics elective course?
This year (2009), you will take 4-4 and 4-5 exams, accounting for about 10% or 15%. I don't remember which one. In inequality, you only take absolute inequality, not Cauchy inequality. 4-4 is coordinate system (plane rectangular coordinate system and polar coordinate system) and parameter equation (line, circle and ellipse).