Mathematics A-Level
Inverse trigonometric functions and principal values
What Inverse trigonometric functions and principal values means in Mathematics A-Level, as defined for AQA.
Definition of Inverse trigonometric functions and principal values
Check what you remember
Read the wording for your board, then hide it and explain Inverse trigonometric functions and principal values in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Arcsin, arccos and arctan return angles for given ratios, with restricted ranges that make them functions and give principal values.
Topics that use Inverse trigonometric functions and principal values
- E: Trigonometry (AQA A-Level)
Related terms
- Algebraic manipulation
- Amplitude
- Asymptote
- Derivation and manipulation of identities
- Domain and range restrictions for functions
- exact trigonometric values
- Graphical behaviour including asymptotes and ranges
- harmonic form
Using Inverse trigonometric functions and principal values in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Mathematics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Mathematics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge