imo class 12 relations and functions

If f(x) = x² + 1 and g(x) = 2x, then the value of f(g(3)) is:

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If f(x) = x² + 1 and g(x) = 2x, then the value of f(g(3)) is:

  • A. 20
  • B. 37
  • C. 19
  • D. 36

Answer: B) 37

Explanation: First find g(3) = 2 × 3 = 6. Then, f(g(3)) = f(6) = 6² + 1 = 36 + 1 = 37.

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