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Domain and Range of a Function

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Estimated time: 3 minutes
Maharashtra State Board: Class 12

Definition: Function

f: X → Y is a function if each element of X is associated with a unique element of Y

Maharashtra State Board: Class 12

Definition: Domain & Codomain

  • Domain (X): Set of all input values
  • Codomain (Y): Set of all possible outputs
Maharashtra State Board: Class 12

Definition: Range

  • Range: Set of actual output values of f
  • Range ⊆ Codomain

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