10. Prove that the vectors A = 3i + j - 2k, B = -i + 3j + 4k, C = 4i - 2j - 6k, can form the sides of a triangle. Find the length of the medians of the triangle, Scalars and Vectors problem no 10. Sindh Textbook Board (stb) problems

10. Prove that the vectors A = 3i + j - 2k, B = -i + 3j + 4k, C = 4i - 2j - 6k, can form the sides of a triangle. Find the length of the medians of the triangle.