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Byju's Answer
Standard X
Mathematics
Section Formula
Vector x sa...
Question
Vector
→
x
satisfying the relation
→
A
.
→
x
=
c
;
→
A
×
→
x
=
→
B
is
A
c
→
A
−
(
→
A
×
→
B
)
∣
∣
∣
→
A
∣
∣
∣
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B
c
→
A
−
(
→
A
×
→
B
)
∣
∣
∣
→
A
∣
∣
∣
2
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C
c
→
A
+
(
→
A
×
→
B
)
∣
∣
∣
→
A
∣
∣
∣
2
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D
c
→
A
−
2
(
→
A
×
→
B
)
∣
∣
∣
→
A
∣
∣
∣
2
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Solution
The correct option is
B
c
→
A
−
(
→
A
×
→
B
)
∣
∣
∣
→
A
∣
∣
∣
2
→
A
×
→
x
=
→
B
⇒
(
→
A
×
→
x
)
→
A
=
→
B
×
→
A
⇒
−
→
A
(
→
x
.
→
A
)
+
→
x
(
→
A
×
→
A
)
=
→
B
×
→
A
⇒
=
C
→
A
+
→
x
|
A
|
2
=
→
B
×
→
A
⇒
→
x
|
A
|
2
=
C
→
A
+
→
B
×
→
A
⇒
→
x
=
C
→
A
−
(
→
A
×
→
B
)
∣
∣
→
A
∣
∣
2
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0
Similar questions
Q.
Vectors
→
A
and
→
B
satisfying the vector equation
→
A
+
→
B
=
→
a
,
→
A
×
→
B
=
→
b
and
→
A
⋅
→
a
=
1
, where
→
a
and
→
b
are given vectors, are
Q.
Four vectors
→
a
,
→
b
,
→
c
and
→
x
satisfy the relation
(
→
a
⋅
→
x
)
→
b
=
→
c
+
→
x
where
→
b
⋅
→
a
≠
1.
The value of
→
x
in terms of
→
a
,
→
b
and
→
c
is equal to
Q.
Let
→
b
and
→
c
are non-collinear vectors. If
→
a
is a vector such that
→
a
.
(
→
b
+
→
c
)
=
4
and
→
a
×
(
→
b
×
→
c
)
=
(
x
2
−
2
x
+
6
)
→
b
+
(
s
i
n
y
)
→
c
, then (x, y) lies on the line
Q.
If
→
a
,
→
b
,
→
c
are unit vectors and
→
b
,
→
c
are non-collinear vectors satisfying
(
→
a
,
→
b
)
=
α
,
(
→
a
,
→
c
)
=
β
and
→
a
×
(
→
b
×
→
c
)
=
→
b
+
→
c
2
,
then
cos
(
α
+
β
)
=
Q.
If vector
→
x
satisfying
→
x
×
→
a
+
(
→
x
⋅
→
b
)
→
c
=
→
d
is given by
→
x
=
λ
→
a
+
→
a
×
→
a
×
(
→
d
×
→
c
)
(
→
a
⋅
→
c
)
|
→
a
|
2
,
then the value of
λ
=
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