Question: [sin (sgn (x)) 4. lim where [:] denotes the greatest integer (sgn (x)) (x)us) function, is equal to . 0 b. 1 . -1

[sin (sgn (x)) 4. lim where [:] denotes the greatest integer (sgn

[sin (sgn (x)) 4. lim where [:] denotes the greatest integer (sgn (x)) (x)us) function, is equal to . 0 b. 1 . -1 d. does not exist

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