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If the function f(x)=| x^2 + a | x | + ...

If the function `f(x)=| x^2 + a | x | + b |` has exactly three points of non-derivability, then

A

A) `b=0, alt0`

B

B) `a lt0, a in R`

C

C) `bgt 0, a in R`

D

D) All of these

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The correct Answer is:
A
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