Question

explicati modulul :
a) | x+5 |, daca x>1
b) | x-3 |, daca x<2
c) | 7-x |, daca x<-1
d) | 8-x |, daca x>8

Answer 1

a)
| x+5 |, x>1
| x+5 | = x+5

b)
| x-3 |, x<2
| x-3 | = 3-x

c)
| 7-x |, x<-1
| 7-x | = | 7-(-x) | = 7+x

d)
| 8-x |, x>8
| 8-x | = x-8