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Byju's Answer
Standard XII
Mathematics
Solving a system of linear equation in two variables
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Question
Solve this:
Q.17. An equation of a plane parallel to the plane x - 2y + 2z - 5 = 0 and at a unit distance from the origin is
(a) x - 2y + 2z - 1 = 0
(b) x - 2y + 2z + 5 = 0
(c) x - 2y + 2z - 3 = 0
(d) x - 2y + 2z + 1 = 0
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Solution
Dear student
Remark
:
Equation
of
any
plane
parallel
to
the
plane
ax
+
by
+
cz
+
d
is
ax
+
by
+
cz
+
d
1
=
0
Distance
of
the
plane
ax
+
by
+
cz
+
d
=
0
from
origin
is
d
a
2
+
b
2
+
c
2
Let
the
equation
of
the
plane
paralle
to
x
-
2
y
+
2
z
-
5
=
0
be
x
-
2
y
+
2
z
+
d
=
0
Given
that
this
plane
is
at
unit
distance
from
origin
.
⇒
d
1
2
+
(
-
2
)
2
+
(
2
)
2
=
1
⇒
d
9
=
1
⇒
d
=
±
3
∴
Required
equation
of
the
plane
is
x
-
2
y
+
2
z
-
3
=
0
Regards
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0
Similar questions
Q.
An equation of a plane parallel to the plane
x
−
2
y
+
2
z
−
5
=
0
and at a unit distance from the origin is:
Q.
Equation of the plane containing the line
x
+
2
y
+
3
z
−
5
=
0
=
3
x
+
2
y
+
z
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which is parallel to the line
x
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2
−
y
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3
, is-
Q.
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A
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1
,
2
,
3
)
relative to the plane
π
is
B
(
3
,
6
,
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)
. The equation of the plane
π
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Q.
Find the angle between the planes x+2y+2z-5=0 and 3x+3y+2z-8=0.
Q.
Solve the following equations:
x
−
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z
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−
x
+
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Standard XII Mathematics
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