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Mathematics
Mathematics
Problem
The equation of the perpendicular from the point
(
α
,
β
,
γ
)
(\alpha, \beta, \gamma)
(
α
,
β
,
γ
)
to the plane
a
x
+
b
y
+
c
z
+
d
=
0
ax + by + cz + d = 0
a
x
+
b
y
+
cz
+
d
=
0
is
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