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Mathematics
Mathematics
Problem
Which of the following function(s) has/have the same range? a.
f
(
x
)
=
1
1
+
x
f(x) = \frac{1}{1+x}
f
(
x
)
=
1
+
x
1
b.
f
(
x
)
=
1
1
+
x
2
f(x) = \frac{1}{1+x^2}
f
(
x
)
=
1
+
x
2
1
c.
f
(
x
)
=
1
1
+
x
f(x) = \frac{1}{1+\sqrt{x}}
f
(
x
)
=
1
+
x
1
d.
f
(
x
)
=
1
3
−
x
f(x) = \frac{1}{\sqrt{3-x}}
f
(
x
)
=
3
−
x
1
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