These identities are particularly useful because they allow you to express any trigonometric function in terms of sine and cosine – often the key to solving complex problems.

Learn how to solve trigonometric equations in Higher Maths involving multiple or compound angles and the wave function in degrees or radians.

National 5 Working with trigonometric relationships in degrees Trigonometric relationships Trigonometric functions can have several solutions.

Learn and practise different types of functions (one-one, onto, inverse) Solve problems from your textbook and reference books Week-2 Inverse Trigonometric Functions ...