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KVPY2017MathematicsFunctions

Let R be the set of real numbers and f : R R be given by f ( x )= | x | - (1+| x |) . We now make the following assertions: I. There exists a real number A such that f ( x ) A for all x II. There exists a real number B such that f(x) B for all x

Options

  1. AI is true and II is false
  2. BI is false and II is true
  3. CI and II both are true
  4. DI and II both are false

Correct answer

B. I is false and II is true

Step-by-step solution

graph of given function actually look like this Clear from graph option (B) is right.

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