reciprocal trigonometric functions
What reciprocal trigonometric functions means in Mathematics A-Level, as defined for Pearson Edexcel, WJEC.
Definitions of reciprocal trigonometric functions
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Reference: WJEC
Defined as sec θ = 1/cos θ, cosec θ = 1/sin θ, and cot θ = 1/tan θ = cos θ / sin θ.
The functions sec x = 1/cos x, cosec x = 1/sin x and cot x = 1/tan x.
Topics that use reciprocal trigonometric functions
- Differentiation (Pearson Edexcel A-Level)
- Trigonometry (A2 Unit 3: Pure Mathematics B) (WJEC A-Level)
Related terms
- Chain rule
- Composite function
- composite trigonometric arguments
- connected rates of change
- Derivative
- differentiation from first principles
- domain and range
- double angle formulas
Using reciprocal trigonometric functions in the exam
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