Negative and fractional indices
What negative and fractional indices mean, evaluating powers like 8^(−2/3) exactly, and solving equations with the unknown in the index.
You will be able to
- Write a negative index as a reciprocal
- Use fractional indices as roots
- Evaluate a^(m/n) and a^(−m/n) exactly
- Solve equations like 4ˣ = 8
25 minutes, 7 exam-style questions, with the Scientific Calculator.