Trigonometric Functions
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Reciprocal functions and angle units

Reciprocal functions and angle units

Unit circle with x and y axes, quadrants I to IV, positive trig functions by quadrant, and a reference angle drawn in quadrant II Trig functions may use degrees or radians. If an interval contains π\piπ, use radians, but if it uses 180∘180^\circ180∘ or 360∘360^\circ360∘, use degrees.

Trigonometric Functions Lesson

  1. A Level
  2. /Maths
  3. /Trigonometric Functions