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Byju's Answer
Standard XII
Mathematics
Condition for Coplanarity of Four Points
Find the equa...
Question
Find the equation of the plane containing two parallel lines
x
−
1
2
=
y
+
1
−
1
=
z
3
and
x
4
=
y
−
2
−
2
=
z
+
1
6
. Also, find if the plane thus obtained contains the line
x
−
2
3
=
y
−
1
1
=
z
−
2
5
or not.
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Solution
L
e
t
L
1
:
x
−
1
2
=
y
+
1
−
1
=
z
3
L
2
:
x
4
=
y
−
2
−
2
=
z
+
1
6
a
n
d
,
L
3
:
x
−
2
3
=
y
−
1
1
=
z
−
2
5
N
o
w
,
a
(
x
−
1
)
+
b
(
y
+
1
)
+
c
z
=
0
−
a
+
3
b
−
c
=
0
2
a
−
b
+
3
c
=
0
a
8
=
−
b
−
3
+
2
=
c
−
5
8
(
x
−
1
)
+
(
y
+
1
)
−
5
z
=
0
8
x
+
y
−
5
z
=
7
8
(
3
r
+
1
)
+
(
r
+
1
)
−
5
(
5
r
+
2
)
−
7
=
0
T
h
e
p
l
a
n
e
a
l
s
o
c
o
n
t
a
i
n
s
l
i
n
e
L
3
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0
Similar questions
Q.
Show that the lines
x
+
3
−
3
=
y
−
1
1
=
z
−
5
5
;
x
+
1
−
1
=
y
−
2
2
=
z
−
5
5
are coplanar. Also find the equation of plane containing the lines.
Q.
Prove that the lines
x
−
2
1
=
y
−
4
4
=
z
−
6
7
and
x
+
1
3
=
y
+
3
5
=
z
+
5
7
are coplanar. Also, find the equation of the plane containing these two lines.
Q.
The equation of the plane containing the
x
−
1
3
=
y
−
6
4
=
z
−
1
2
and parallel to the line
x
−
2
2
=
y
−
1
−
3
=
z
+
4
3
is
Q.
The equation of the plane which contains the line
x
4
=
y
2
=
z
1
and is perpendicular to the plane containing the lines
x
−
4
1
=
y
−
5
4
=
z
−
9
2
and
x
+
8
4
=
y
+
6
2
=
z
−
2
1
Q.
Find the vector and cartesian equations of the plane containing the line
x
−
2
2
=
y
−
2
2
=
z
−
1
3
and parallel to the line
x
+
1
3
=
y
−
1
2
=
z
+
1
1
.
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Condition for Coplanarity of Four Points
Standard XII Mathematics
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