masses at A, B, and C, the center of mass of that system is given by the intersections of the medians of the triangle. 9. (a) Let u, v e R2. Describe the vectors x su + tv, where s +t = 1. Pay particular attention to the location of x when s > 0 and whent > 0. (b) Let u, v, w e Ri. Describe the vectors x ru +sV + tw, wherer+s +t = 1. Pay particular attention to the location of x when each of r, s, and t is positive. 10. Suppose x, y e R" are nonparallel vectors. (Recall the definition on p. 3.)

masses at A, B, and C, the center of mass of that system is given by the intersections of the medians of the triangle. 9. (a) Let u, v e R2. Describe the vectors x su + tv, where s +t = 1. Pay particular attention to the location of x when s > 0 and whent > 0. (b) Let u, v, w e Ri. Describe the vectors x ru +sV + tw, wherer+s +t = 1. Pay particular attention to the location of x when each of r, s, and t is positive. 10. Suppose x, y e R" are nonparallel vectors. (Recall the definition on p. 3.)

Name: I need help for problem 9. Thanks! masses at A, B, and C, the center o
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Description: I need help for problem 9. Thanks! masses at A, B, and C, the center of mass of that system is given by the intersections of the mediansof the triangle.9. (a) Let u, v e R2. Describe the vectors x su + tv, where s +t = 1. Pay particular attentionto t