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Question 25

The number of points, at which the function $$f(x) = \max\{6x, 2 + 3x^2\} + |x - 1|\cos\left|x^2 - \frac{1}{4}\right|$$, $$x \in (-\pi, \pi)$$, is not differentiable, is _____.


Correct Answer: 2

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