Which of the following is the graph of sgn (x), where sgn (x) represents the signum function?
sgn[x] or signum function is defined as sgn (x) = 1 if x > 0
= -1 if x < 0
= 0 if x =0
So the graph will look like
Findlimx→ 0+sgn(x)+limx→ 0−sgn(x), where sgn(x) represents the signum function
Find the value of sgn(-1) + sgn(0) + sgn(1), where sgn(x) is the signum function