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ZIMSEC O-Level Additional Mathematics

6.1.1.2Irrational numbers: surds

Irrational numbers: surds in ZIMSEC O-Level Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson
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Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.1.2.1Form 3: simplify surds and carry out operations with them.

Lessons

  • Surds and exact answers

    35 min

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Sample question

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

Irrational numbers: surds: sample question

1 mark

Evaluate (7+2)(7−2)\left(\sqrt{7} + 2\right)\left(\sqrt{7} - 2\right) without a calculator.

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

Turn Irrational numbers: surds into a strength.

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