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Byju's Answer
Standard IX
Mathematics
Applications of Dot Product
Find the line...
Question
Find the linear relation between the following system of vectors
→
a
,
→
b
,
→
c
being any three non-coplanar vectors:
→
a
−
→
b
+
→
c
,
→
b
+
→
c
−
→
a
,
→
c
+
→
a
+
→
b
,
2
→
a
−
3
→
b
+
4
→
c
.
A
(
2
)
(
a
−
b
+
c
)
+
(
3
)
(
b
+
c
−
a
)
−
1
2
(
c
+
a
+
b
)
=
2
a
−
3
b
+
4
c
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B
(
3
)
(
a
−
b
+
c
)
+
(
b
+
c
−
a
)
−
(
2
)
(
c
+
a
+
b
)
=
2
a
−
3
b
+
4
c
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C
(
7
/
2
)
(
a
−
b
+
c
)
+
(
b
+
c
−
a
)
−
1
2
(
c
+
a
+
b
)
=
2
a
−
3
b
+
4
c
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D
(
5
/
2
)
(
a
−
b
+
c
)
+
(
b
+
c
−
a
)
−
1
2
(
c
+
a
+
b
)
=
2
a
−
3
b
+
4
c
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Solution
The correct option is
C
(
7
/
2
)
(
a
−
b
+
c
)
+
(
b
+
c
−
a
)
−
1
2
(
c
+
a
+
b
)
=
2
a
−
3
b
+
4
c
Suggest Corrections
0
Similar questions
Q.
Given:
→
a
,
→
b
a
n
d
→
c
are coplanar.
Vectors
→
a
−
2
→
b
+
3
c
,
−
−
→
2
a
+
→
3
b
−
→
4
c
a
n
d
−
→
b
+
→
2
c
are non-coplanar vectors.
Q.
Simplify:
2
a
−
[
3
b
−
{
a
−
(
2
c
−
3
b
)
+
4
c
−
3
(
a
−
b
−
2
c
)
}
]
Q.
The length of the perpendicular from the origin to the plane passing through three non-collinear points
→
a
,
→
b
,
→
c
is
Q.
The scalars l and m such that
l
→
a
+
m
→
b
=
→
c
where
→
a
,
→
b
and
→
c
are given vectors, are equal to
Q.
If
→
a
,
→
b
,
→
c
are vectors such that
→
a
.
→
b
=
0
and
→
a
+
→
b
=
→
c
, then
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