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CBSE XII
>>
Math
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Vector Algebra
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Q)
If
→
a
,
→
b
,
→
c
are unit vectors such that
∣
→
a
+
→
b
+
→
c
∣=
0
,then the value of
→
a
.
→
b
+
→
b
.
→
c
+
→
c
.
→
a
is
(
A
)
1
(
B
)
3
(
C
)
−
3
2
(
D
)
N
o
n
e
o
f
t
h
e
s
e
Share
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