EasyCurves in space

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §12.4 Polar Coordinates and Planetary Motion, #2 · Multivariable Calculus · Curves in space

Find … and … at

Find $u_{r}$ and $u_{θ}$ at $(3, 3)$ . If $v = i + j$ then $v =$ ____ $u_{r}$ . Equation (5) gives $d r / d t =$ ____ and $d θ / d t =$ ____.

~5 minWritten answer · check your work with Lemma

Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §12.4 Polar Coordinates and Planetary Motion, #2

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.