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Mathematics
Mathematics
Problem
If
A
B
C
D
E
F
ABCDEF
A
B
C
D
E
F
is a regular hexagon, prove that
A
D
+
E
B
+
F
C
=
4
A
B
\mathbf{AD} + \mathbf{EB} + \mathbf{FC} = 4\mathbf{AB}
AD
+
EB
+
FC
=
4
AB
.
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