Tools

http://www.cymath.com/

http://www.mathportal.org/calculators.php

https://www.desmos.com/calculator

Sketch graphs of trigonometric functions

Graphs of sin θ, cos θ and tan θ

Remember sin graph starts at 0

Amplitude and period transformations

Calculator to test answers: https://www.desmos.com/calculator

Solving triangles

Right Angled Triangles

Sine Rule 
Determine the sides




Determine the angles



Cosine Rule
Determine the sides



Determine the angles

Trig Ratios

30°, 45° and 60°

45°, 45°, 90° 

When you work with trig and radians, π means the same as 180° because 2π radians is a full circle 360°

Trig Ratios for positive multiples of

30°, 45° and 60°

Negative Multiples of 30°, 60° and 45° trig ratios 



Reduction Formulae 

Trigonometric identities

Identities 



Proving trigonometric identities



Solving trigonometric equations using identities

Trigonometric equations

Using CAST




Equations with multiple angles




Trigonometric equations that factorise




Solving a trigonometric equation by using reciprocal function




Make everything sin and cos

Trigonometric functions

Basic Trigonometry: Sin, Cos, Tan 



Relation between the trigonometric functions