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Mathematics
Problem
State the range of the function
f
(
x
)
=
1
x
f(x)=\dfrac{1}{x}
f
(
x
)
=
x
1
, where
x
≠
0
x\neq0
x
=
0
. a)
(
0
,
∞
)
(0,\infty)
(
0
,
∞
)
b)
R
\mathbb R
R
c)
R
∖
{
0
}
\mathbb R\setminus\{0\}
R
∖
{
0
}
d)
{
0
}
\{0\}
{
0
}
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