Domain of Definition Course
Build strong expertise in determining domains of functions confidently. Sharpen abilities with roots, logarithms, and rational expressions, understand discontinuities clearly, and master precise interval notation—perfect for maths experts seeking flawless analysis without errors.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
This course equips you with essential tools to find valid input domains for functions using real numbers. Explore domain notation, handle rational, radical, and logarithmic functions, and manage compositions with various constraints. Through targeted exercises, mistake identification, and quick reference guides, gain confidence in solving problems accurately and swiftly.
Elevify advantages
Develop skills
- Identify domains and write answers using set, interval, or inequality notation.
- Examine rational function domains by factoring, simplifying, and spotting removable discontinuities.
- Tackle constraints for roots and logarithms by solving radicand and argument inequalities quickly.
- Evaluate combined restrictions to find domains of composite and intricate functions.
- Prevent common domain mistakes like sign errors, zero denominators, and inequality mishandling.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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