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CAIE IGCSE Additional Math 1.2 domains and ranges

Use this domain-and-range page to read allowed inputs and outputs for functions and inverses, including restrictions needed for inverse functions.

Syllabus
2028–2030
Course
Additional Mathematics 0606

Exam points

  • Write the range of a function or inverse function from its graph or rule.
  • State domain and range after applying restrictions such as x > 0 or x ≥ 0.
  • Use inverse-function relationships to swap domain and range correctly.

1.2. Find domains and ranges of functions question 1

[Maximum number: 3]

A function g is defined by g(x)=ex−2g(x)=e^{\sqrt{x-2}} for x⩾2x\geqslant 2.

Write down the range of g−1g^{-1}.

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