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Mathematics
Mathematics
Problem
Show that the lines
x
=
−
y
=
2
z
x = -y = 2z
x
=
−
y
=
2
z
and
x
+
2
=
2
y
−
1
=
−
z
+
1
x + 2 = 2y - 1 = -z + 1
x
+
2
=
2
y
−
1
=
−
z
+
1
are perpendicular to each other.
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