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B
continuous ∀x∈R
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C
non-differentiable at x=0
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D
discontinuous at x=0
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Solution
The correct options are B continuous ∀x∈R C non-differentiable at x=0 f(x)=x−|x| For x≥0, f(x)=0 For x<0, f(x)=2x The left hand limit and right limits are equal at x=0. The function is continuous at x=0. At x=0, L.H.D=2 , R.H.D=0 Hence, the function is not differentiable at x=0