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Mathematics
Mathematics
Problem
Let
P
P
P
be the image of the point
(
3
,
1
,
7
)
(3, 1, 7)
(
3
,
1
,
7
)
with respect to the plane
x
−
y
+
z
=
3
x - y + z = 3
x
−
y
+
z
=
3
. Then, the equation of the plane passing through
P
P
P
and containing the straight line
x
1
=
y
2
=
z
1
\frac{x}{1} = \frac{y}{2} = \frac{z}{1}
1
x
=
2
y
=
1
z
is a.
x
+
y
−
3
z
=
0
x + y - 3z = 0
x
+
y
−
3
z
=
0
b.
3
x
+
z
=
0
3x + z = 0
3
x
+
z
=
0
c.
x
−
4
y
+
7
z
=
0
x - 4y + 7z = 0
x
−
4
y
+
7
z
=
0
d.
2
x
−
y
=
0
2x - y = 0
2
x
−
y
=
0
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