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Expert-verifiedThe curve with the vector equation \({\rm{r(t) = }}{{\rm{t}}^{\rm{3}}}{\rm{i + 2}}{{\rm{t}}^{\rm{3}}}{\rm{j + 3}}{{\rm{t}}^{\rm{3}}}{\rm{k}}\) is a line.
The given statement is true.
The parameter always appears with its third power. If redistributing the curve in this way, they can get a better result
\({\rm{r(t) = }}{{\rm{t}}^{\rm{3}}}{\rm{i + 2}}{{\rm{t}}^{\rm{3}}}{\rm{j + 3}}{{\rm{t}}^{\rm{3}}}{\rm{k}}\)
Let, \({{\rm{t}}^{\rm{3}}}{\rm{ = s}}\)
\({\rm{r(s) = si + 2sj + 3sk}}\)
This can also write as
\({\rm{r(s) = s}}\langle {\rm{1,2,3}}\rangle \)
The curve is a line whose direction is specified by the vector, as we can see from this form \(\langle {\rm{1,2,3}}\rangle \)
Therefore, the statement is true.
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