+ Trigonometric FunctionsDM4-1.tex#Trigonometry
+ Solving Trigonometric EquationsDM4-1.tex#Solve, trigonometry
+ Trigonometric IdentitiesDM4-1.tex#Identities, trigonometry
+ Simplifying Trigonometric ExpressionsDM4-1.tex#Simplify, trigonometry
+ Solution of TrianglesDM4-1.tex#Solution of triangles
+ Inverse Trigonometric Functions and Trigonometric EquationsDM4-1.tex#Inverse trig functions