Q12Short answer
If A, B, C, D are the points with position vectors iˆ + ˆj − kˆ , 2iˆ − ˆj + 3kˆ , 2iˆ − 3kˆ, 3iˆ − 2 ˆj + kˆ , respectively, find the projection of AB along CD .
If A, B, C, D are the points with position vectors iˆ + ˆj − kˆ , 2iˆ − ˆj + 3kˆ , 2iˆ − 3kˆ, 3iˆ − 2 ˆj + kˆ , respectively, find the projection of AB along CD .