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Paragraph for Question Nos. 15 to 16 Let f:[2, ) [1, ) defined by f(x) = 2^ x^4 - 4x^2 and g: [ 2 , ] A defined by g(x) = x + 4 x - 2 be two invertible functions, then The set ' A ' equals to

Options

  1. A[5, 2]
  2. B[-2, 5]
  3. C[-5, 2]
  4. D[-5, -2]

Correct answer

D. [-5, -2]

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