NumberDeep Dive
Higher Level: Fractional and Negative Indices
Part of Powers & Roots — GCSE Mathematics
This deep dive covers Higher Level: Fractional and Negative Indices within Powers & Roots for GCSE Mathematics. Revise Powers & Roots in Number for GCSE Mathematics with 15 exam-style questions and 22 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 11 of 13 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 11 of 13
Practice
15 questions
Recall
22 flashcards
Higher Level: Fractional and Negative Indices
Preview of advanced index laws:
- Fractional: x^(1/2) = √x, x^(1/3) = ∛x
- Negative: x^(-1) = 1/x, x^(-2) = 1/x²
- Combined: 8^(2/3) = (∛8)² = 2² = 4
These connect powers and roots as inverse operations!