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CDS Model Paper 4 Mathematics
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© examsnet.com
Question : 82
Total: 100
If
(
x
+
y
−
z
)
2
+
(
y
+
z
−
x
)
2
+
(
z
+
x
−
y
)
2
=
0
, then the value of
x
+
y
−
z
is
√
3
3
√
3
3
0
Validate
Solution:
(
x
+
y
−
z
)
2
+
(
y
+
z
−
x
)
2
+
(
z
+
x
−
y
)
2
=
0
⇒
(
x
+
y
−
z
)
=
0
© examsnet.com
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