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Problem
Problem
Suppose
f
(
x
)
f(x)
f
(
x
)
and
g
(
x
)
g(x)
g
(
x
)
are functions.
f
(
x
)
f(x)
f
(
x
)
has domain
D
f
D_f
D
f
and range
R
f
R_f
R
f
.
g
(
x
)
g(x)
g
(
x
)
has domain
D
g
D_g
D
g
and range
R
g
R_g
R
g
. a.
a
Under what circumstance will
(
f
∘
g
)
(
x
)
(f \circ g)(x)
(
f
∘
g
)
(
x
)
be defined? b.
b
Assuming
(
f
∘
g
)
(
x
)
(f \circ g)(x)
(
f
∘
g
)
(
x
)
is defined, find its domain.
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