Section 5 Mathematical Formulas
5-1 Trigonometric Function
5-1-1 Conversion between both of the Trigonometric Functions
5-1-2 Symmetric Property
5-1-3 Movement & Periodicity
5-1-4 Additional Theorem
5-1-5 Double-angle Formula
5-1-6 Half-angle Formula
5-1-7 Sum of Products Formula
5-1-8 Product-of-sum Formula
5-1-9 Composition Formula of Trigonometric Function