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Mathematics
Mathematics
Problem
Determine the open interval(s) of
θ
\theta
θ
on
(
0
,
π
)
(0,\pi)
(
0
,
π
)
for which the curve
r
=
2
sin
θ
r=2\sin\theta
r
=
2
sin
θ
is concave down in the Cartesian plane.
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