Documents Vectors IB Problems Mark Scheme

1. (a) OC OD CD − · (A1) (C1) (b) CD OA 2 1 · = ) ( 2 1 OC OD − (A1) (C1) (c) OA OD AD − · = ) ( 2 1 OC OD OD − − (A1) = OC OD 2 1 2 1 + (A1) (C2) Note: Deduct…