Trig. Equations
How to Solve a Trig. Equation
Can it be written in the same trig. function?
You may need to use an identity to write an equation in the same trig. function which may then possibly factorise.
In these examples I show you how the identities
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can be used to solve equations with different trig. squared functions in.
The examples are:

You may wish to try these as part of your revision before looking at the numerical answers or the video of the worked solutions.
Worked solution to (1)
Worked Solution to (2)
Worked solution to (3)
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