In this tutorial I introduce you to fractions which are to a negative index and how to simplify them using the rule.

Formulae to remember:

  • {{{\left( {\dfrac{a}{b}} \right)}^{ - n}} = {{\left( {\dfrac{b}{a}} \right)}^n}}
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Indices (Exponents) - Fractions to Negative Powers : ExamSolutions Maths Revision

Summary Exercise

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Indices (Exponents) - Fractions to Negative Powers (Exercise) : ExamSolutions Maths Revision