Trig identities - Sum to Product and vv Tutorial 1
Proving double angle formula. A good example of the type of diagramatic proof you will be doing in the exam
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Trig geometric proof question
Trig identieties
A few really good scholarship style trig questions. They involve identities and include some common tricks and tips that you need to understand to get the questions correct.
Example 1 Example 2 Example 3