duplicate problem statement

[teepeemm]

APEXCalculusV5/exercises/11_01_ex_07.tex

Line 1 in ef1af9c

{$\vec r(t) = \la \frac1{10}t^2,\sin t\ra$, for $-2\pi\leq t\leq 2\pi$.

This currently repeats the previous problem statement in 11_01_ex_06. Based on figures/fig_11_01_ex_07.tex, I believe the problem should be \la 3\cos t, 2\sin t\ra.