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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