Short Answer 13. If c = [m, n, 1] is perpendicular to both a = [5, 1, -2] and b = [3, -3, 6], find m and n. 14. Given the points X(0, 2, -1), Y(3, 1, 2), and Z(-3, 2, 5), find XY x XZ ) . YZ. Problem 15. A ship is on a heading of 040 at 20 knots and a 2 knot current is flowing from 010. Determine the resultant velocity of the ship, using Cartesian vectors, and state the magnitude and bearing of the resultant. 16. Given the points A(1, 2, 3), B(5, 4, 3), and C(2, 1, 2), find ZABC