Question

The range of sgn (

2 + 4) is

(a) {1} (b) {0} (c) {−1, 0, 1} (d) n.o.t​

Answer 1

Step-by-step explanation:

Signum function is defined as follows:

sgn(x)=

⎩

⎪

⎨

⎪

⎧

x

∣x∣

0

;

;

x



=0

x=0

or, sgn(x)=

⎩

⎪

⎪

⎪

⎨

⎪

⎪

⎪

⎧

1

−1

0

;

;

;

x>0

x<0

x=0

.

So it is clear that the range of the function is {−1,0,1}.

Answer 2

answer

6 is th answer

Step-by-step explanation:

4 +2 is 6