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Standard X
Maths
Question
If
a
b
+
b
c
+
c
a
=
0
,
then the value of
1
a
2
−
b
c
+
1
b
2
−
c
a
+
1
c
2
−
a
b
will be:
a
+
b
+
c
−
1
0
a
b
A
−
1
B
0
C
a
+
b
+
c
D
a
b
Open in App
Solution
Verified by Toppr
a
b
+
b
c
+
c
a
=
0
−
−
−
−
(
1
)
=
1
a
2
−
b
c
+
1
b
2
−
c
a
+
1
c
2
−
a
b
=
1
a
2
+
a
b
+
c
a
+
1
b
2
+
a
b
+
b
c
+
1
c
2
+
a
a
+
c
a
(From
(
1
)
=
1
a
(
1
a
+
b
+
c
)
+
1
b
(
1
a
+
b
+
c
)
+
1
c
(
1
a
+
b
+
c
)
=
1
a
+
b
+
c
(
1
a
+
1
b
+
1
c
)
=
a
b
+
b
c
+
c
a
(
a
+
b
+
c
)
(
a
b
c
)
=
0
From
(
1
)
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