Problem #25
Tag:
multivariable
Unit Tangent Vector
Given the vector function r(t), find the unit tangent vector T(t) at the point with the given value of t
\[
\displaylines{\mathbf{r\left(t\right)}=t\mathbf{i}+2\sin\left(t\right)\mathbf{j}+3\cos\left(t\right)\mathbf{k}\\ t=\frac{\pi}{6}}
\]
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