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Byju's Answer
Other
Quantitative Aptitude
Area Based Approach
In a regular ...
Question
In a regular hexagon
A
B
C
D
E
F
,
¯
¯¯¯¯¯¯
¯
A
B
=
a
,
¯
¯¯¯¯¯¯
¯
B
C
=
→
b
and
¯
¯¯¯¯¯¯¯
¯
C
D
=
→
c
.
T
h
e
n
,
¯
¯¯¯¯¯¯
¯
A
E
=
A
→
a
+
→
b
+
→
c
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B
2
→
a
+
→
b
+
→
c
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C
→
b
+
→
c
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D
→
a
+
2
→
b
+
2
→
c
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Solution
The correct option is
C
→
b
+
→
c
According to the question...........
I
n
r
e
g
u
l
a
r
h
e
x
a
g
o
n
:
i
t
s
s
i
d
e
l
i
n
e
i
s
,
A
B
=
B
C
=
D
E
=
E
F
=
A
F
∣
∣
¯
¯¯¯¯¯¯
¯
A
E
∣
∣
=
∣
∣
¯
¯¯¯¯¯¯¯
¯
B
D
∣
∣
∣
∣
¯
¯
¯
a
∣
∣
=
∣
∣
¯
¯
b
∣
∣
=
∣
∣
¯
¯
c
∣
∣
=
l
I
n
t
r
i
a
n
g
l
e
A
B
C
D
[
U
s
e
t
r
i
a
n
g
l
e
l
a
w
o
d
e
d
i
t
i
o
n
,
¯
¯¯¯¯¯¯
¯
B
C
+
¯
¯¯¯¯¯¯¯
¯
C
D
=
¯
¯¯¯¯¯¯¯
¯
B
D
⇒
¯
¯
b
+
¯
¯
c
=
¯
¯¯¯¯¯¯¯
¯
B
D
=
¯
¯¯¯¯¯¯
¯
A
E
T
h
e
n
,
¯
¯¯¯¯¯¯
¯
A
E
=
¯
¯
b
+
¯
¯
c
S
o
,
t
h
a
t
t
h
e
c
o
r
r
e
c
t
o
p
t
i
o
n
i
s
C
.
Suggest Corrections
0
Similar questions
Q.
[
→
a
+
2
→
b
−
→
c
,
→
a
−
→
b
,
→
a
−
→
b
−
→
c
]
=
Q.
If
→
a
,
→
b
,
→
c
are non-coplanar then
[
→
a
+
2
→
b
→
b
+
2
→
c
→
c
+
2
→
a
]
[
→
a
→
b
→
c
]
Q.
If
→
a
,
→
b
,
→
c
are non coplanar and
[
→
a
→
b
→
c
]
=
4
7
, then
[
2
→
a
−
→
b
,
2
→
b
−
→
c
,
2
→
c
−
→
a
]
is
Q.
If
→
a
,
→
b
and
→
c
are perpendicular to
→
b
+
→
c
,
→
c
+
→
a
and
→
a
+
→
b
respectively and if
|
→
a
+
→
b
|
=
6
,
|
→
b
+
→
c
|
=
8
and
|
→
c
+
→
a
|
=
10
, the
|
→
a
+
→
b
+
→
c
|
is equal to
Q.
Let
→
A
=
→
b
×
→
c
,
→
B
=
→
c
×
→
a
,
→
C
=
→
a
×
→
b
, then the vectors
→
A
×
(
→
B
×
→
C
)
,
→
B
×
(
→
C
×
→
A
)
, and
→
C
×
(
→
A
×
→
B
)
are
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