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Let f(x)={2/(1+x^2),xi sr a t ion a l b ...

Let `f(x)={2/(1+x^2),xi sr a t ion a l b ,xi sr a t ion a l` has exactly two points of continuity then the value of `b` are `(0,3]` b. `[0,1]` c. `(0,2]` d.`varphi`

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