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Mathematics
Mathematics
Problem
If the distance of the point
(
1
,
1
,
1
)
(1, 1, 1)
(
1
,
1
,
1
)
from the origin is half its distance from the plane
x
+
y
+
z
+
k
=
0
x + y + z + k = 0
x
+
y
+
z
+
k
=
0
, then
k
=
k =
k
=
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