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Mathematics
Problem
Let
f
(
x
)
=
x
x
+
2
f(x)=\dfrac{x}{x+2}
f
(
x
)
=
x
+
2
x
,
x
≠
−
2
x\neq -2
x
=
−
2
, and
g
(
x
)
=
2
x
1
−
x
g(x)=\dfrac{2x}{1-x}
g
(
x
)
=
1
−
x
2
x
,
x
≠
1
x\neq 1
x
=
1
. Evaluate
(
f
∘
g
)
(
3
)
(f\circ g)(3)
(
f
∘
g
)
(
3
)
. a)
−
3
5
-\dfrac{3}{5}
−
5
3
b)
3
3
3
c)
−
3
-3
−
3
d)
3
5
\dfrac{3}{5}
5
3
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