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Mathematics
Mathematics
Problem
If the planes
3
x
−
2
y
+
2
z
+
17
=
0
3x - 2y + 2z + 17 = 0
3
x
−
2
y
+
2
z
+
17
=
0
and
4
x
+
3
y
−
k
z
=
25
4x + 3y - kz = 25
4
x
+
3
y
−
k
z
=
25
are mutually perpendicular, then
k
=
k =
k
=
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