Trigonometry  Relationships, equations and identities.
Main page.
The basic relationships.  
Summary of the basic relationships  for reference and for helping you learn them.  
Trig relationships  Test Yourself 1.  
Trig relationships  Test Yourself 1  Solutions. 

Finding a side in a triangle  Test Yourself 1.  
Finding a side in a triangle  Test Yourself 1  Solutions. 

Finding an angle in a triangle  Test Yourself 1.  
Finding an angle in a triangle  Test Yourself 1  Solutions. 

Trigonometry identities.  
Steps to follow with trigonometric identities.  
Trig identities  Test Yourself 1.  
Trig identities  Test Yourself 1  Solutions.  
Trig identities  Test Yourself 2.  
Trig identities  Test Yourself 2  Solutions.  
Solving trigonometric equations (angles in degrees). 

Steps to follow when solving basic trigonometric equations.  
Trig equations  Test Yourself 1.  
Trig equations  Test Yourself 1  Solutions.  
Trig equations  Test Yourself 2.  
Trig equations  Test yourself 2  Solutions.  
Further trigonometric identities.  
Further identities (sums & diffs)  Test Yourself 1. 

Further identities (sums & diffs)
 Test Yourself 1 Solutions. 

Further identities (double angles and t)  Test Yourself 1. 

Further identities (double angles and t)  Test Yourself 1.  Solutions 

Further identities (trig products)  Test Yourself 1. 

Further identities (trig products)  Test Yourself 1  solutions. 

Auxilliary angles of the form Rcos (x ± α) and Rsin (x ± α). 

Auxilliary angles  Test yourself 1.  
Auxilliary angles  Test yourself 1  solutions. 