Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

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.