Consider $f(x) = |1 - x|$ for $1 \le x \le 2$ and $g(x) = f(x) + b \sin(\frac{\pi}{2}x)$ for $1 \le x \le 2$. Which of the following is correct?

  • A
    Rolle's theorem is applicable to both $f$ and $g$ with $b = \frac{3}{2}$.
  • B
    $LMVT$ is not applicable to $f$,and Rolle's theorem is applicable to $g$ with $b = \frac{1}{2}$.
  • C
    $LMVT$ is applicable to $f$,and Rolle's theorem is applicable to $g$ with $b = 1$.
  • D
    Rolle's theorem is not applicable to both $f$ and $g$ for any real $b$.

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