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Mathematics
Mathematics
Problem
Explain why the function
f
(
x
)
=
tan
x
f(x)=\tan x
f
(
x
)
=
tan
x
has exactly one critical point in the interval
(
−
π
/
2
,
π
/
2
)
(-\pi/2,\,\pi/2)
(
−
π
/2
,
π
/2
)
and state its
x
x
x
-coordinate.
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