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Mathematics
Problem
Let
h
(
x
)
=
1
x
h(x)=\dfrac{1}{x}
h
(
x
)
=
x
1
with domain
0
<
x
≤
1
2
0<x\le\dfrac12
0
<
x
≤
2
1
. Which of the following sets represents the range of
h
h
h
? a)
(
0
,
2
]
(0,2]
(
0
,
2
]
b)
(
2
,
∞
)
(2,\infty)
(
2
,
∞
)
c)
[
2
,
∞
)
[2,\infty)
[
2
,
∞
)
d)
(
0
,
∞
)
(0,\infty)
(
0
,
∞
)
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