Consider a regular hexagon A B C D E F of center O and of side 4 U
I and J are the respective midpoints of the segments [AB] and [ED].
1. Replace the missing spaces by letters or vectors from the figure:
a. ....E=F....+G.....
e.M N=....P+l....
b. A B=....C+ D}+....B
f. A B+B C+C D+D E=.....
c.I J}=I B+B
g.C D=A A+A.....
d. H....=H+I J