There are five compulsory math books. The compulsory course 1 in senior one mathematics last semester is mainly set and function, compulsory course 2 is mainly space geometry, pointing to the relationship between straight line and plane, compulsory course 3 is straight line and equation, garden and equation, compulsory course 4 is trigonometric function and plane vector, compulsory course 5 is to solve triangles, series and inequalities. Mathematics in senior one refers to the mathematics learned in senior one, with more knowledge, and the examination questions in senior one account for about 60% of the college entrance examination scores. You have to study five books in a school year. As long as you have a solid grasp of the mathematics in Grade One, Grade Two and Grade Three are only the review and supplement of Grade One.