English

Let f(x)= |cosx|. Then, ______.

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Question

Let f(x)= |cosx|. Then, ______.

Options

  • f is everywhere differentiable

  • f is everywhere continuous but not differentiable at n = nπ, n ∈ Z

  • f is everywhere continuous but not differentiable at x = `(2"n" + 1) pi/2, "n" ∈ "Z"`

  • None of these

MCQ
Fill in the Blanks
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Solution

Let f(x)= |cosx|. Then, f is everywhere continuous but not differentiable at x = `(2"n" + 1) pi/2, "n" ∈ "Z"`.

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Chapter 5: Continuity And Differentiability - Solved Examples [Page 104]

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NCERT Exemplar Mathematics Exemplar [English] Class 12
Chapter 5 Continuity And Differentiability
Solved Examples | Q 28 | Page 104

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