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Mathematics
Problem
Explain why reversing the limits of integration from
t
=
a
t=a
t
=
a
to
t
=
b
t=b
t
=
b
to
t
=
b
t=b
t
=
b
to
t
=
a
t=a
t
=
a
does not change the numerical value of the arc length of a smooth parametric curve.
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