MCQ
The maximum value of the function ${x^3} + {x^2} + x - 4$ is
  • A
    $127$
  • B
    $4$
  • Does not have a maximum value
  • D
    None of these

Answer

Correct option: C.
Does not have a maximum value
c
(c) $f'(x) \ne 0$ at real values of $x$

so $f(x)$ does not have maximum value.

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