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Mathematics
Mathematics
Problem
Identify the function that is one-one on the entire set of real numbers
R
\mathbb{R}
R
. a)
f
(
x
)
=
x
3
−
x
f(x)=x^{3}-x
f
(
x
)
=
x
3
−
x
b)
f
(
x
)
=
x
f(x)=\sqrt{x}
f
(
x
)
=
x
c)
f
(
x
)
=
x
3
f(x)=x^{3}
f
(
x
)
=
x
3
d)
f
(
x
)
=
tan
x
f(x)=\tan x
f
(
x
)
=
tan
x
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