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Nigerian Scholars » Tutorials » Mathematics » Trigonometry

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Introduction to Trigonometry

Similarity of Triangles

Defining the Trigonometric Ratios

Reciprocal Ratios

Special Angles

Solving Trigonometric Equations

Finding Lengths

Finding An Angle

Summary and Main Ideas

Trigonometric Identities

Deriving Reduction Formulae

Trigonometric Equations

The General Solution

The Area Rule

The Sine Rule

The Cosine Rule

Derivation of cos(α − β)

Derivation of sin 2α

Derivation of cos 2α

Applications of Trigonometric Functions

Problems in Two Dimensions

Problems in Three Dimensions