Let f(x)={1/(|x|)for|x|geq1a x^2+bfor|x|...

Let `f(x)={1/(|x|)for|x|geq1a x^2+bfor|x|<1iff(x)` is continuous and differentiable at any point, then `a=1/2,b=-3/2` (b) `a=-1/2,b=3/2` `a=1, b=-1` (d) none of these

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