Given r(t)=⟨t,t2,t3⟩\mathbf{r}(t) = \langle t, t^2, t^3 \rangler(t)=⟨t,t2,t3⟩, find the curvature κ(t)\kappa(t)κ(t) at t=0t=0t=0.
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Undefined