Let K be the set of all real values of x where the function f(x) = sin |x| – |x| + 2(x – …) cos |x| is not differentiable. Then the set K is equal to :

Option B. f(x) = sin… + 2(x … …) cosx

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Limits Continuity and Differentiability

JEE Main 2019 · 11 Jan, Evening shift · Q4188

MathematicsEasy179×since 2002Q4188

Let K be the set of all real values of x where the function f(x) = sin |x| – |x| + 2(x –

\pi

) cos |x| is not differentiable. Then the set K is equal to :

JEE Main 2019 · 11 Jan, Evening shift · Q4188

MathematicsEasy179×since 2002Q4188

Let K be the set of all real values of x where the function f(x) = sin |x| – |x| + 2(x –

\pi

) cos |x| is not differentiable. Then the set K is equal to :