Simple Identities What is a trigonometric identity? They are used to help simplify trigonometric equations before solving them Sometimes you may see identities written with the symbol?≡ This means ...
suvat in 1D What are the suvat (constant acceleration) formulae? For constant acceleration there are?five?suvat formula: How do I identify values for suvat within a question? ?Common phrases...
Modelling with Trigonometric Functions What can be modelled with trigonometric functions? Anything that oscillates (fluctuates periodically) can be modelled using a trigonometric function Normally ...
Transformations of Trigonometric Functions What transformations of trigonometric functions do I need to know? As with other graphs of functions, trigonometric graphs can be transformed through?tran...
Graphs of Trigonometric Functions What are the graphs of trigonometric functions? The trigonometric functions sin, cos and tan?all have special?periodic graphs You’ll need to know their properties ...
Trigonometry Exact Values What are exact values in trigonometry? For certain angles the values of sin?θ, cos?θ?and tan?θ?can be written?exactly This means using fractions and surds You should be fa...
Defining Sin, Cos and Tan What is the unit circle? The unit circle is a circle with radius 1 and centre (0, 0) Angles are always measured from the positive x-axis and turn: anticlockwise?for?positi...
Bearings What are bearings? Bearings?are a way of describing and using?directions?as?angles They are specifically defined for use in navigation because they give a precise?location?and/or?direction...
Sine Rule What is the sine rule? The sine rule allows us to find missing side lengths or angles in?non-right-angled triangles It states that for any triangle with angles?A, B?and?C Where a?is the s...
