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Let f(x) = a+ b|x| + c|x|^4 where a, b a...

Let` f(x) = a+ b|x| + c|x|^4` where a, b and continuous are real constants . Then, f(x) is differentiable at x = 0, if

A

a = 0

B

b = 0

C

c = 0

D

none of these

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The correct Answer is:
B
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