Chapter 10

Trigonometry

An advanced extension of Level A trigonometry — ratios of any angle, negative angles, the basic acute angle, further identities, the Law of Sines and Cosines, bearings, and triangle area using sine.

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Trigonometry

10.1 Trigonometric Ratios of Any Angle

10.2 Negative Angles

10.3 The Basic Acute Angle

10.4 Trigonometric Ratios of 0°, 90°, 180°, 270°, 360°

10.5 Further Trigonometric Identities

10.6 The Law of Cosines and The Law of Sines

10.7 Bearings

10.8 The Area of a Triangle