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

from 4 to 360h flexible workload
certificate valid in your country
What will I learn?
This course provides a practical toolkit for finding valid inputs of functions in real numbers. Review domain notation, handle rational, root, and log expressions, and manage compositions with multiple constraints. Gain confidence through targeted practice, error detection, and concise rules for efficient solving.
Elevify advantages
Develop skills
- Determine domains in set, interval, and inequality formats.
- 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 slips, 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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