Domain of Definition Course
Gain confidence mastering domains of definition. This course hones skills in roots, logs, and rational functions, clarifies discontinuities, and perfects interval notation—perfect for maths pros needing precise, error-free analysis. Ideal for building efficient problem-solving in real-number functions.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
This course equips you with practical tools to identify valid function inputs in real numbers. Review domain notation, handle rational, root, and log expressions, and manage compositions with multiple constraints. Through targeted practice, error detection, and quick reference rules, you'll swiftly gain confidence for precise, efficient solutions.
Elevify advantages
Develop skills
- Determine domains in set, interval, and inequality notation.
- Analyse rational domains by factoring, cancelling, and spotting discontinuities.
- Solve root and log constraints with radicand and argument inequalities.
- Combine nested restrictions for compositions and complex formulas.
- Avoid domain errors like sign issues, zero denominators, and inequality misuse.
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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