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If f(x) = x^(3)sgn (x), then...

If `f(x) = x^(3)`sgn (x), then

A

f is differentiable at x = 0

B

f is continuous but not differentiable at x = 0

C

`f'(0^(-)) = 1`

D

None of these

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The correct Answer is:
A
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