2. Write each of vectors in the form 2 280° 6 W 5 180°

In Figure 1.24, A, B, C, D, E, and F are the vertices of a regular hexagon centered at the origin. Express each of the following vectors in terms of a=OAandb=OB: (a) AB (b) BC (c) AD (d) CF (e) AC (f) BC+DE+FA Figure 1.24