G H A a b F O C I E D K 4 ABCDEF and GHIJKL are regular hexagons with centre O. GHIJKL is an enlargement of ABCDEF, with scale factor 2. OA = a and OB = b(d) Write the vector FC in terms of a and b. - . . . . ." (1) (e) Write the vector IK in terms of a and b. (1) (f) Write the vector LI in terms of a and b. (1) (9) Write the vector LG in terms of a and b. (1) (h) Write the vector JG in terms of a and b. (1) (i) Write the vector DL in terms of a and b.3. OABC is a trapezium. Point D is the midpoint of BC. Point E is the midpoint of AC. OA = 2a AB = 4b and OC = 8b A 4b B Not drawn accurately D 2a E O C 8b (a) Write these vectors in terms of a and b. OB (1) (ii) AC - . . . . . . . . . .. . (1) (iii) AE (1) (b) Show ED and OC are parallel.\f5. ABCD is a trapezium 3b A B b - a D AB and DC are parallel. DC = 2AB (a) Write down the vector DC in terms of a and b6. W y X C X A ABC is a triangle. M lies on BC such that BM = 45 BC Express these vectors in terms of x and y (a) BC - . . . . .... (1) (b) BM (1) (C) AM (1)O P J Q A B C AOB is a triangle. P is a point on AO. AB = 2a AO = 6b AP:PO = 2:1 (a) Find the vector OB in terms of a and b (1)