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Tutorials and how-tos

Indices 1: Essential skills for GCSE and A-level Maths: Basics, index laws, negative indices
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Indices 1: Essential skills for GCSE and A-level Maths: Basics, index laws, negative indices

What are indices, and what do I need to know about them? “Indices” is the plural of index. An index is another name for a power, also sometimes called an exponent. It’s a small number written as superscript, such as…