13. The angle between the vector A and B is 60°. Given that |A| = |B| = 1, calculate (a) |B-A|; (b)|B + A|, Scalars and Vectors problem no 13. Sindh Textbook Board (stb) problems

13. The angle between the vector A and B is 60°. Given that |A| = |B| = 1, calculate (a) |B-A|; (b)|B + A|