Question

4.
4. In the diagram, not drawn to scale, B is the midpoint of OX. C is the midpoint of AB and D is such that OD = 2DA. The vectors a and b are such that OA =3A, AND OB=B


(i) Write in terms of a and b a) AB, B) AC, C) DC, D)DX

(ii) State TWO geometric relationships between DX and DC

(iii) State ONE geometric relationship between D , C and X

Answer 1

the triangle is O A B with B is the midpoint of OX C the midpoint of AB,D is such that OD =2DA

Answer 2

not sure how to draw it here

Answer 3

THAT IS THE DIAGRAM

Answer 4

Write in terms of a and b a)

(ii) State TWO geometric relationships between DX and DC

(iii) State ONE geometric relationship between D , C and X

Answer 5

I POST THE QUESTIONS AGAIN

Answer 6

NO

Answer 7

ok ill show u how to do (i) and ill help u through the rest :)

Answer 8

OK

Answer 9

AB = AO + OB
AB = -3a + b do u understand how i did this?

Answer 10

AM TRYING TO UNDERSTAND

Answer 11

IS THE ANSWER FOR AC = OA+AC=3A+1/2

Answer 12

OA = 3a, this is said in the question, therefore
AO = -3a because

Does this help?