UPSC 2016 CDS I Math Paper

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Question : 4 of 100
 
Marks: +1, -0
If a2−by−cz=0,ax−b2+cz=0 and ax+by−c2=0, then the value of
x
a+x
+
y
b+y
+
z
c+z
will be
[2016 CDS-I]
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