bobcatmom1054 bobcatmom1054 23-05-2023 Mathematics contestada Given vectors R = ycosx — yzsinx – 3yz² and S = (3x − y)i + xy²j+xzk. If possible, determine the following at the point (2π, 3, -1) a) grad R b) div R c) grad S d) curl R e) div S