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Trigonometry

The study of triangles.

Amazon: Trigonometry

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Basic Trigonometry

Basic Trigonometry

Definitions Using Tan to Find an Angle Using Tan to Find a Side Using Sine to Find an Angle Using Sine to Find a Side Using Cosine to Find an Angle Using Cosine to Find a Side Which Ratio? Kindle : Basic Trigonometry

Trig Graphs

Amplitude & Period Sketching Trig Graphs How Amplitude & Phase Affect Graphs Interactive: y = A sin(x + φ) Interactive: y = a·sin/cos/tan(bx + c) + d Interactive Trig Grapher Kindle : Trig Graphs

Radians

Radians Degrees → Radians Using Exact Values Conversion Table Interactive – Radians Interactive CAST Diagram Kindle : Radians Revision
Formulae & Identities

Equations & Compound Formulae

Solving Trig Equations Compound Angle Formulae – Examples Trigonometric Identities

Formulae

Trig Refresher sec, cosec & cot Compound Formulae Double Angle Half Angle Product Formulae Multiple Angle

Deriving Formulae

Deriving Compound Angle Deriving Addition Formulae Deriving Double Angle Formulae Deriving Multiple Angle Formulae Deriving Half Angle Formulae Kindle : Deriving Trig Formulae
Triangle Rules

Area, Sine Rule, Cosine Rule

Area of a Triangle Sine Rule – Example Cosine Rule – Examples Which Rule? (SSS, etc.) Bearings with Trigonometry Triangle Solver Kindle : Area, Sine , Cosine Rules

The Wave Function

Adding Two Waves Subtracting Two Waves cos(x + a) sin(x − a) sin(x + a) Multiple Angles Maximum / Minimum Value Sketching Graphs Solving Equations