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Inverse and Composite Functions

Inverse and Composite Functions

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Question 80

Given that f(x)=3x+1f(x) = 3x + 1f(x)=3x+1 and g(x)=x2g(x) = x^2g(x)=x2

a.

Verify that fg(x)=3x2+1fg(x) = 3x^2 + 1fg(x)=3x2+1

[2]
b.

Work out an expression for gf(x)gf(x)gf(x)

[2]
c.

Solve fg(x)=gf(x)fg(x) = gf(x)fg(x)=gf(x)

[3]
Markscheme

Inverse and Composite Functions Questions

  1. GCSE
  2. /Maths
  3. /Inverse and Composite Functions

136 exam-style questions on Edexcel GCSE Maths Inverse and Composite Functions. Each one has a worked solution and a mark scheme showing where the marks go.

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