Suppose u; v are nonzero vectors in R2. Prove thathu; viDkukkvk cos ;where is the angle
Chapter 6, Problem 13(choose chapter or problem)
Suppose u; v are nonzero vectors in R2. Prove thathu; viDkukkvk cos ;where is the angle between u and v (thinking of u and v as arrows withinitial point at the origin).Hint: Draw the triangle formed by u, v, and u v; then use the law ofcosines.
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