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Question

The number of points at which the function f(x) = |x - 0.5| + |x - 1| + tan x does not have a derivative in the interval (0, 2), is
[MNR 1995]
  1. 2
  2. 3
  3. 1
  4. 4


Solution

The correct option is B 3
Function f(x) = |x - 0.5| + |x - 1| + tan x does not have a derivative at the points x = 0.5, 1, π2ϵ(0,2).

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