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Black Book Advanced Problems in MathematicsMathematicsLimits

f(x) = _ n x^n + ( 3 )^n x^ n-1 + ( 3 )^ n-1 , ( n is an even integer), then which of the following is incorrect ?

Options

  1. A(a) If f : [ 3 , ) [ 3 , ) , then function is invertible
  2. B(b) f(x) = f(-x) has infinite number of solutions
  3. C(c) f(x) = |f(x)| has infinite number of solutions
  4. D(d) f(x) is one-one function for all x R

Correct answer

D. (d) f(x) is one-one function for all x R

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