Trigonometry (Metric)

Class Details

Tom Baker

Learn, or revise, trigonometrical functions (and their reciprocals and inverses) and trigonometrical identities.

The functions \(\sin x\), \(\cos x\) and \(\tan x\), and their reciprocals and inverses.

Trigonometrical Functions

Lesson

Radian Measure

The natural measure of angle, and its relationship with the traditional one.

Lesson Not yet graded

Area of Triangles and Parallelograms

Using trig functions to calculate the areas of shapes in the plane.

Lesson

Important Angles

Trig functions evaluated at \(0\), \(\pi/6\), \(\pi/3\), \(\pi/3\) and \(\pi/2\), and their obtuse and reflex counterparts.

Lesson

Domain, Range and Period

Values of \(x\) on which the trig functions are defined, and values of \(y\) they attain; periodicity I their graphs.

Lesson

Relations among trig functions.

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