NIMCET 2023 Question Paper with solutions

Question : 39 of 120

Marks: +1, -0

Number of non-differentiable points of the function

f(x)=3+|\cos (x)|

in the interval

[-π, π]

is:

Solution:

It is not differentiable at two points (We should know the function is not differentiable where there is sharp turns).

y=|\cos x|+3

It is not differentiable at

x=\;{-π}/{2}, \;{π}/{2}

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