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\bf{Question}

\quad For each of the curves $\gamma$ in Question 1 find an
expression for the {\it curvature} $\kappa(t)$ at points where it
is defined; indicate any points where it is not defined.  Find the
points where the curvature is a local {\it maximum} or {\it
minimum} (so-called `vertices') and indicate them on the curve
$\gamma$.



\bf{Answer}

See question 1


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