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Mathematics
Mathematics
Problem
If
f
(
x
)
=
log
2
x
f(x)=\log_{2}x
f
(
x
)
=
lo
g
2
x
and
g
(
x
)
=
3
x
g(x)=3^{x}
g
(
x
)
=
3
x
, what is the domain of the composite function
(
f
∘
g
)
(
x
)
(f\circ g)(x)
(
f
∘
g
)
(
x
)
? a)
(
0
,
∞
)
(0,\infty)
(
0
,
∞
)
b)
R
\mathbb R
R
c)
{
x
∈
R
∣
x
≠
0
}
\{x\in\mathbb R\mid x\neq0\}
{
x
∈
R
∣
x
=
0
}
d)
(
1
,
∞
)
(1,\infty)
(
1
,
∞
)
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