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Mathematics
Mathematics
Problem
1. Find the range of the function
y
=
arctan
x
y=\arctan x
y
=
arctan
x
. a)
(
−
π
,
π
)
(-\pi,\,\pi)
(
−
π
,
π
)
b)
(
−
π
2
,
π
2
)
\bigl(-\tfrac{\pi}{2},\,\tfrac{\pi}{2}\bigr)
(
−
2
π
,
2
π
)
c)
(
0
,
π
)
(0,\,\pi)
(
0
,
π
)
d) \bigl[ -\tfrac{\pi}{2},\,\tfrac{\pi}{2} \bigr]
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