CUET Mathematics - Let a = 2i + 3j + k and b = 2i - j + 2k be two vectors. Then which of the following are TRUE? A. a and b are perpendicular B. Projection of a on b is 1 C. |a x b| = 3sqrt(13) D. a - b is a unit vector Choose the correct answer from the options given below: | PYQs + Solutions | AfterBoards