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If f(x) = sqrt(1-sqrt1-x^2 , then at x =...

If `f(x) = sqrt(1-sqrt1-x^2` , then at x = 0

A

f(x) is differentiable as well as continuous

B

f(x) is differentiable but not continuous

C

f(x) is continuous but not differentiable

D

f(x) is neither continuous nor differentiable

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A
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