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ZIMSEC O-Level Additional Mathematics

6.1.1.1Indices

Indices in ZIMSEC O-Level Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson
Practise this topicAll Additional Mathematics topics

Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.1.1.1Form 3: define an index and use rational indices and the rules of indices to simplify algebraic expressions.
  2. 6.1.1.1.2Form 3: solve equations involving indices (exponential equations).

Lessons

  • Indices and exponential equations

    35 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Indices: sample question

1 mark

Without a calculator, evaluate 823×4−128^{\frac{2}{3}} \times 4^{-\frac{1}{2}}.

Only if the answer has a unit, e.g. cm or km/h.

Turn Indices into a strength.

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