Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Show that
a
x
+
b
y
+
r
=
0
ax+by+r=0
a
x
+
b
y
+
r
=
0
,
b
y
+
c
z
+
p
=
0
by+cz+p=0
b
y
+
cz
+
p
=
0
and
c
z
+
a
x
+
q
=
0
cz+ax+q=0
cz
+
a
x
+
q
=
0
are perpendicular to XY, YZ and ZX planes, respectively.
Browse the problem library