Question 4: u, v and w are three vectors in three-dimensional space. |u| = 5, |v| = 2 and |w| = 1. The angle between u and w is π/3. What should the angle between u and v be so that |u + 2v + w| = |u + v + 2w|?
Question 4: u, v and w are three vectors in three-dimensional space. |u| = 5, |v| = 2 and |w| = 1. The angle between u and w is π/3. What should the angle between u and v be so that |u + 2v + w| = |u + v + 2w|?