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Subject
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Trigonometry
> Trigonometry (Continued)
Trigonometry (Continued)
Napier's Analogy
Theorem :
In any triangle ABC, with sides a = BC, b = CA and c = BA, then prove that
Proof:
Method I
Similarly, (ii) and (iii) can be proved.
Method II
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Trigonometry (Continued)
Introduction
Co-terminal Angles
Theorem 1
Theorem 2
Theorem 3
Theorem 4
Sine Formula (Sine Rule)
Cosine Formula (Cosine Rule)
Projection Formula
Napier's Analogy
Area of a triangle
Hero's Formula
Half-Angle Formulae
Solution of triangles
Heights and Distances
Inverse Trigonometric Functions
Summary
Animations
Graphs of Inverse Trigonometric functions
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