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Mathematics
Mathematics
Problem
A particle moves along the
x
x
x
-axis so that at any time
t
≥
0
t \ge 0
t
≥
0
, its position is given by
x
(
t
)
=
t
3
−
6
t
2
+
9
t
+
2
x(t) = t^3 - 6t^2 + 9t + 2
x
(
t
)
=
t
3
−
6
t
2
+
9
t
+
2
. For what values of
t
t
t
is the particle moving to the left?
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