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Cambridge IGCSE Additional Mathematics

1.7Composite functions

Composite functions in Cambridge IGCSE Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic21 practice questions1 lesson
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Learning objectives

What the syllabus expects you to be able to do.

  1. 1.7Form and use composite functions, knowing that the order matters.

Lessons

  • Composite functions

    30 min

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Sample question

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

Composite functions: sample question

1 mark

Given f(x)=3x−1f(x) = 3x - 1 and g(x)=x2g(x) = x^2, find fg(2)fg(2).

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

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