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If f(x) = |x-a| phi (x), where phi(x) is...

If `f(x) = |x-a| phi (x)`, where `phi(x)` is continuous function, then

A

`f'(a^+) = phi (a)`

B

`f'(a-)=-phi(a)`

C

`f'(a^+) = f'(a^-)`

D

None of these

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A, B
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