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Mathematics
Mathematics
Problem
Find the range of
f
(
x
)
=
2
sin
x
+
csc
2
x
f(x) = 2\sin x + \csc^2 x
f
(
x
)
=
2
sin
x
+
csc
2
x
,
x
∈
(
0
,
π
2
)
x \in \left(0, \frac{\pi}{2}\right)
x
∈
(
0
,
2
π
)
.
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