Edexcel IGCSE Maths复习笔记 1.4.1 Roots & Indices - Basics

What are indices?

An Index (plural = indices) is just a power that a number (called the base) is raised to:

 

Laws of indices – what you need to know

There are lots of very important laws (or rules)

It is important that you know and can apply these

Understanding the explanations will help you remember them:

Exam Tip

Take it slowly and apply the laws one at a time.

Worked Example

转载自savemyexam

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