જો $f(x) = \text{Sgn}(\text{Sgn}(\text{Sgn}(x)))$ હોય,તો $\mathop {\lim }\limits_{x \to 0} f(x)$ ની કિંમત શું થાય :-

  • A
    $1$
  • B
    $-1$
  • C
    $0$
  • D
    અસ્તિત્વ ધરાવતું નથી

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