If f(x) = Sgn(Sgn(Sgn(x))), then _ x 0 f(x) is equal to :- - Vidyadip

MCQ

If $f(x) = Sgn(Sgn(Sgn(x)))$, then $\mathop {\lim }\limits_{x \to 0} f(x)$ is equal to :-

A
$1$
B
$-1$
C
$0$
✓
does not exist

✓

Answer

Correct option: D.

does not exist

d

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