Revision:Solving Trigonometric Equations

TSR Wiki > Study Help > Subjects and Revision > Revision Notes > Mathematics > Solving Trigonometric Equations

The various trigonometric formulae and identities can be used to help solve trigonometric equations. Here is a summary of the most important trigonometric formulae you should know:

Example

Solve , giving your answer in radians for .

We need to get everything in terms of or everything in terms of . Since we know that :

or

.

Remember, if ,... and the same is true for .

In the question, you are asked for values of x between 0 and p. You must write down all of the appropriate solutions.

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