Vectors u=-2(cos 30i + sin30j), v = 6(cos 225i + sin225j), and w = 8(cos 120i + sin120j) are given. Use exact values when evaluating sine and cosine. Part A: Convert the vectors to component form and find -7(u v). Show every step of your work. (4 points) Part B: Convert the vectors to component form and use the dot product to determine if u and w are parallel, orthogonal, or neither. Justify your answer. (6 points)