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AP EAMCET2005MathematicsFunctions

x R:[x-|x|]=5 is equal to

Options

  1. AR, the set of all real numbers
  2. B, the empty set
  3. Cx R: x < 0
  4. Dx R: x 0

Correct answer

B. , the empty set

Step-by-step solution

Let f(x)= x [R:(x-|x|]=5 f(x)=0 for x 0 and f(x) < 0 for x < 0 no value of x is satisfying the relation f(x)=

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