GCSE Secondary Maths Age 13-17 - Pythagoras & Trigonometry: Trigonometry - Sin, Cos, Tan - Explained

The video tutorial explains how to solve a geometry problem involving a right angle triangle. It covers finding the angle ABC using trigonometry, specifically the cosine function. The process includes labeling the triangle, using the cosine formula, and calculating the angle with a calculator. The tutorial also discusses the effect of reducing the length of side AB on the cosine of angle ABC, emphasizing the importance of understanding the question requirements.

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