1.

If f(x)={{:(ax^(2)-b",", -1 lt x lt 1), (1/abs(x)",", "elsewhere"):} is differentiable at x=1, then

Answer»

`a=1/2, b=(-3)/2`
`a=(-1)/2, b=3/2`
`a=-1/2, b=-3/2`
`a=1/2, b=3/2`

Answer :C


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