Trigonometry : English Edition

ections1 Angles and Applications
sections2 Trigonometric Functions of a General Angle
sections3 Trigonometric Functions of an Acute Angle
sections4 Solution of Right Triangles
sections5 Practical Applications
sections7 Variations and Graphs of the Trigonometric Functions
sections8 Basic Relationships and Identities
sections9 Trigonometric Functions of Two Angles
sections10 Sum, Difference, and Product Formulas
sections11 Oblique Triangles
sections12 Area of a Triangle
sections13 Inverses of Trigonometric Functions
sections14 Trigonometric Equations
sections15 Complex Numbers