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Mathematics
Mathematics
Problem
The plane
x
a
+
y
b
+
z
c
=
3
\frac{x}{a} + \frac{y}{b} + \frac{z}{c} = 3
a
x
+
b
y
+
c
z
=
3
meets the co-ordinate axes in
A
,
B
,
C
A, B, C
A
,
B
,
C
. The centroid of the triangle
A
B
C
ABC
A
B
C
is
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