Solve this: Q.7. If the sum of two unit vectors is a unit vector, then magnitude of difference is (A) 2 (B) 3 (C) 1 2 (D) 5 Share with your friends Share 1 Sandeep K. Gupta answered this 3 View Full Answer Champ Jee answered this Hope you understood: 2 Romil Singh answered this Thanks 0