15/40 Marks 41%
a) Find, in terms of a and c, the vector MN.
Note: Ignore arrows above vectors eg write MN, not MN
ABCD is a parallelogram.
Mis the midpoint of CB.
N is the midpoint of AB.
DA = a
A
N
DC = C
+
B
b) Show that CA is parallel to MN.
1
+
a
Ем
D
С
C

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