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Question: Answered & Verified by Expert
If $f(x)=|x-2|, x \in[0,4]$ then the Rolle's theorem cannot be applied to the
function because
MathematicsApplication of DerivativesMHT CETMHT CET 2020 (12 Oct Shift 1)
Options:
  • A The function is not differentiable at every point in the $(0,4)$.
  • B $f(4) \neq f(0)$
  • C Function is not well-defined in the domain.
  • D The function is not continuous at every point in the $[0,4]$.
Solution:
2363 Upvotes Verified Answer
The correct answer is: The function is not differentiable at every point in the $(0,4)$.
Here $f(0)=|0-2|=-2$ and $f(4)=|4-2|=2$
Thus $\mathrm{f}(4) \neq \mathrm{f}(0)$
Hence Rolle's Theorem cannot be applied.

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