What you need to know
Specification
You should state domains and ranges using set notation.
If you find an inverse function always state a domain.
Revision Resources
Integral maths - Functions 2: Composite and inverse functions
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AIMING FOR A/A*
Kerboodle Textbook bridging edition
Functions try exercise 12.2B pg390
REVISION SHEETS
Cheat Sheet From Physics and Maths Tutor