Coplanar Vectors Calculation (Jee Mains) | ExamDuo
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Scalar and Vector Triple Products
Medium
Coplanar Vectors Calculation
Let the vectors
→
u
1
=
^
i
+
^
j
+
a
^
k
,
→
µ
2
=
^
i
+
b
^
j
+
^
k
and
→
u
3
=
c
^
i
+
^
j
+
^
k
be coplanar. If the vectors
→
v
1
=
(
a
+
b
)
^
i
+
cj
+
ck
,
→
v
2
=
a
^
i
+
(
b
+
c
)
^
j
+
ak
^
k
and
→
v
3
=
b
^
i
+
b
^
j
+
(
c
+
a
)
^
k
are also coplanar, then
6
(
a
+
b
+
c
)
is equal to
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12
C
6
D
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