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Mathematics
Mathematics
Problem
Explain why the function
f
(
x
)
=
arcsin
(
2
x
)
f(x)=\arcsin(2x)
f
(
x
)
=
arcsin
(
2
x
)
is defined only for
x
x
x
in the interval
[
−
1
2
,
1
2
]
\left[-\tfrac12,\tfrac12\right]
[
−
2
1
,
2
1
]
.
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