## Trigonometric Ratios

Skill Type Description Source
4.1 Right-angled Triangles Workbook Define trigonometric functions both in right-angled triangles and more generally + express angles in degrees + calculate all the angles and sides in any right-angled triangle given certain information HELM
Sine, Cosine and Tangent of An Angle of Any Size Booklet This unit explains how we define the trig ratios sine, cosine, and tangent for an angle of arbitrary size MathsCentre
The Trigonometrical Ratios Worksheet This leaflet defines sine, cosine and tangent of angles in a right-angled triangle and gives some standard ratios MathsCentre
4.3 Trigonometric Identities Workbook Use the main trigonometric identities + use trigonometric identities to combine trigonometric functions HELM
Trigonometrical Ratios in A Right Angled Triangle Booklet This unit introduces the ratios sine, cosine and tangent, with reference to a right angled triangle MathsCentre
Trigonometric Ratios For 300, 600, 450 Etc Worksheet On completion of this worksheet you should be able to evaluate the trigonometric ratios for 300, 600, 450 and their associated angles without using a calculator Coventry University
Trigonometric Ratios For Any Angle Worksheet On completion of this worksheet you should know the definitions for the sine, cosine and tangent of any angle and be able to write these in terms of an acute angle Coventry University
Trigonometric Ratios For Right Angled Triangles Worksheet On completion of this worksheet you should understand what is meant by the trigonometric ratios sine, cosine and tangent and be able to use these ratios to calculate sides and angles of right angled triangles Coventry University
Trig identities Video - 40 mins In this unit we consider trigonometric identities and how to use them to solve trigonometric equations MathTutor
Trig ratios in a right angled triangle Video - 35 mins Knowledge of the trigonometric ratios of sine, cosine and tangent is vital in very many fields of engineering, science and maths. This unit introduces them and provides examples of how they can be used to solve problems MathTutor
Trig ratios of an angle of any size Video - 28 mins Knowledge of the trigonometric ratios sine, cosine and tangent is vital in many fields of engineering, maths and science. This unit explains how the sine, cosine and tangent of an arbitrarily sized angle can be found MathTutor
Trig ratios 1 MiniClip Trig ratios 1 Leeds University
Trig ratios 2 MiniClip Trig ratios 2 Leeds University
Trig identities 1 MiniClip Trig identities 1 - Basic identities Leeds University
Trig identities 2 MiniClip Trig identities 2 - Compound angle formulae Leeds University
Trig identities 3 MiniClip Trig identities 3 - double angle formulae Leeds University
Solving trig equations 1 MiniClip Solving trig equations 1 Leeds University
Solving trig equations 2 MiniClip Solving trig equations 2 Leeds University
Solving trig equations 3 (identities) MiniClip Solving trig equations 3 (identities) Leeds University
Solving trig equations 4 (compound angle formulae) MiniClip Solving trig equations 4 (compound angle formulae) Leeds University
Solving trig equations 5 (double angle formulae) MiniClip Solving trig equations 5 (double angle formulae) Leeds University

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