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AP EAMCET · Maths · Application of Derivatives

Let \(f(x)=\operatorname{Max}\{\cos x, \sin x, 0\}\). If the number of points at which \(f(x)\) is not differentiable in \((0,2024 \pi)\) is \(1012 k\), then \(\mathrm{k}=\)

  1. A \(3 / 2\)
  2. B 6
  3. C 3
  4. D 2
Verified Solution

Answer & Solution

Correct Answer

(C) 3

Step-by-step Solution

Detailed explanation

\(\because f(x)=\max \{\cos x, \sin x, 0\}\) The bold curve in the above figure is the graph of \(f(x)\). From figure, it is clear that \(f(x)\) is periodic. \(f(x)\) has 3 sharp edge between 0 to \(2 \pi\). \(\therefore f(x)\) is not differentiable at 3 points between 0 to…