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The signum (or sign) function, denoted by sgn, is defined by sgn⁡x = {−1 if x < 0 0 if x = 0 1 if x > 0 (a) Sketch the graph of this function. (b) Find each of the following limits. (If an answer does not exist, enter DNE.) (i) limx→0+sgn⁡x (ii) limx→0−sgn⁡x (iii) limx→0 sgn⁡x (iv) limx→0|sgn⁡x|

The signum (or sign) function, denoted by sgn, is defined by sgn⁡x = {−1 if x < 0 0 if x = 0 1 if x > 0 (a) Sketch the graph of this function. (b) Find each of the following limits. (If an answer does not exist, enter DNE.) (i) limx→0+sgn⁡x (ii) limx→0−sgn⁡x (iii) limx→0 sgn⁡x (iv) limx→0|sgn⁡x|The signum (or sign) function, denoted by sgn, is defined by sgn⁡x = {−1 if x < 0 0 if x = 0 1 if x > 0 (a) Sketch the graph of this function. (b) Find each of the following limits. (If an answer does not exist, enter DNE.) (i) limx→0+sgn⁡x (ii) limx→0−sgn⁡x (iii) limx→0 sgn⁡x (iv) limx→0|sgn⁡x|

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The signum (or sign) function, denoted by sgn, is defined by sgn ⁡ x = { − 1 if x < 0 0 if x = 0 1 if x > 0 (a) Sketch the graph of this function.
(b) Find each of the following limits. (If an answer does not exist, enter DNE.) (i) lim x → 0 + sgn ⁡ x ◻ (ii) lim x → 0 − sgn ⁡ x ◻ (iii) lim x → 0 sgn ⁡ x ◻ (iv) lim x → 0 | sgn ⁡ x | ◻

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