A vector field in polar coordinates has the form F(r.0) = f(r.0)u, +g(r,0)ug, where the unit vectors are u, =cos 0 i+sin jand Ug = -sini+cos 8 j for r> 0. Sketch the vector field F=ru, and express it in Cartesian coordinates. Choose the correct sketch below. OA. О в. O c. O D. + E) ve C ves Deriv and De d Deri her On vative vative Sal De licit De and Im vative vative inition

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