Mathematics A-Level
sec(x)
What sec(x) means in Mathematics A-Level, as defined for Pearson Edexcel.
Definition of sec(x)
Check what you remember
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Reference: Pearson Edexcel
The secant function, defined as the reciprocal of the cosine function: sec(x) = 1/cos(x).
Topics that use sec(x)
- Trigonometry (Pearson Edexcel A-Level)
Related terms
- Arcsin, arccos and arctan
- area of a triangle
- Asymptotes
- Domain
- Domains of reciprocal functions
- Equations involving multiples of the unknown angle
- Exact values
- Fundamental trigonometric identities
Using sec(x) in the exam
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