हिंदी

Composition of Functions

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Estimated time: 1 minutes
  • Composition of three functions
Maharashtra State Board: Class 12

Definition: Composition of Functions

Let f: A → B and g: B → C be any two functions. Then, the composition of f and g, denoted by gof, is defined as a function gof: A → C given by

gof(x) = g[f(x)], ∀ x ∈ A

  • Domain (gof) = Domain (f)
  • g∘f(x) = g(f(x)) → first apply f, then g
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