CassyL
CassyL
15-10-2017
Mathematics
contestada
How do you find the range of this?
Respuesta :
liemonder
liemonder
15-10-2017
you split the function into its three sections and calculated each one independently, afterwards you join the resulting sets
-x if x<-1:
(1,∞)
0 for -1≤ x ≤ 1:
{0}
x if x>1:
(1,∞)
range in total:
(1,∞) ∪ {0} ∪ (1,∞)=
(1,∞) ∪ {0}=
{y∈R|y>1∨y=0}
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