Domain of Definition Course
Gain mastery over function domains confidently. This course hones your expertise in roots, logarithms, and rational functions, explains discontinuities clearly, and perfects interval notation—perfect for maths experts seeking precise, mistake-free work in real-number analysis.

flexible workload from 4 to 360h
valid certificate in your country
What will I learn?
This course equips you with practical tools to find valid inputs for functions using real numbers. You'll master domain notation, handle rational, root, and logarithmic functions, and manage compositions with various constraints. Through targeted exercises, error detection methods, and quick reference guides, you'll gain confidence in solving problems accurately and swiftly.
Elevify advantages
Develop skills
- Determine domains and express answers using sets, intervals, or inequalities.
- Analyse rational domains by factoring, simplifying, and identifying removable discontinuities.
- Solve constraints for roots and logs by quickly handling radicand and argument inequalities.
- Combine multiple restrictions to find domains of compositions and complex expressions.
- Avoid common domain mistakes like sign errors, zero denominators, and inequality misuse.
Suggested summary
Before starting, you can change the chapters and 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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