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Paragraph: Let f(x)=| x|, x 1 Question: What is the derivative of f f(x) , where 1 x 2 ?

Options

  1. A1 x
  2. B1 x x
  3. C- 1 x
  4. D- 1 x x

Correct answer

D. - 1 x x

Step-by-step solution

Since, 1 x 2 | x|= x and 0 x 2 | x|=- x Hence y = fof (x)=| || x|=- ( x) , for x 2y^ = -1 x 1 x y^ = -1 x x

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