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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

Step-by-step lessons on Edexcel A Level Maths Trigonometric Functions, covering 6.1 Secant, Cosecant and Cotangent, 6.2 Graphs of Sec x, Cosec x and Cot x, 6.3 Using Sec x, Cosec x and Cot x, 6.4 Trigonometric Identities, and 6.5 Inverse Trigonometric Functions. Each one builds up to exam-style questions. Build fluency with the core pure algebra and calculus toolkit early, since almost every mechanics and statistics topic on the course depends on it.

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