Vertices O, A and B form a triangle.
Y is the midpoint of AB.
A is the midpoint of OZ.
...
![subject](/tpl/images/cats/mat.png)
Mathematics, 16.12.2021 15:10 g0606997
Vertices O, A and B form a triangle.
Y is the midpoint of AB.
A is the midpoint of OZ.
−−→
O
A
=
2
a
−−→
O
X
=
4
b
−−→
X
B
=
2
b
Express:
(i) the vector
−−→
X
Y
in terms of
a
and/or
b
.
(ii) the vector
−−→
Y
Z
in terms of
a
and/or
b
.
Explain if XYZ are in a straight line in the comment box giving a reason for your answer.
![ansver](/tpl/images/cats/User.png)
Answers: 2
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