Lemma
EasyCurves in space
Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §12.1 The Position Vector, #1 · Multivariable Calculus · Curves in space

Sketch the curve with parametric equations

Sketch the curve with parametric equations . Find the velocity vector and the speed at .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §12.1 The Position Vector, #1

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