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Mathematics
Mathematics
Problem
For the parametric equations
x
(
t
)
=
2
t
+
1
x(t)=2t+1
x
(
t
)
=
2
t
+
1
and
y
(
t
)
=
t
3
−
3
t
y(t)=t^{3}-3t
y
(
t
)
=
t
3
−
3
t
on the interval
−
2
≤
t
≤
2
-2\le t\le 2
−
2
≤
t
≤
2
, determine the set of
t
t
t
-values for which the curve is concave up.
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