Compulsory 5: Solving inequality of triangle sequence

Elective course 2- 1: common logical terms conic curve and equation space vector and solid geometry

Elective course 2-2: Derivative and its application, expansion of reasoning proof number system and introduction of complex number.

Elective 2-3: Counting Principle Random Variables and Statistical Cases of Their Distribution

There are pure elective courses later, depending on how your school arranges them.