Composition of functions and its domain

What this note covers

1. Forming a composition
2. Square-root domains
3. Reciprocal restrictions
4. Range-to-domain condition
5. Three-function compositions
6. Solving composition equations
7. Composition domain clinic: every inner output must be admissible
8. Composition equations, alternate orders and range-to-domain reasoning

8 sections · 10 key terms & formulas · 6 common mistakes