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Chapter 12: Trigonometry
Edexcel: Chapter 19 Pg. 304 Exercise 19D, 19E, 19F
Section 12.1: Introduction
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Section 12.2a: Trigonometric Ratios: Tangent
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12.2c Trigonometric Ratios: Cosine
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12.3 Finding Angles using Trigonometry
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12.4: Trigonometric Problems
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